A COMPLETE NUMERACY PROGRAMME FOR PRIMARY SCHOOLS
5th Class Satellite Book Answers
Topic 1: Place Value
A.
Teacher Check
B.
Teacher Check
C.
1.(a)60
(c)590
(e)5,490
(g)23,660
(i)73,870
2.(a)100
(c)200
(e)8,400
(g)29,600
(i)77,800
3.(a)1,000
(c)5,000
(e)9,000
(g)39,000
(i)41,000
Page 5
(b)280
(d)1,270
(f)10,750
(h)34,620
(j)97,450
(b)200
(d)1,300
(f)19,000
(h)39,200
(j)83,900
(b)2,000
(d)8,000
(f)19,000
(h)55,000
(j)75,000
Topic 1: Place Value
Page 6
D.
1.120
2.Greatest = 98,543
Smallest = 34,589
3.59,843
4.43,985
E.
1.(a)Eleven thousand, two hundred and
eighty-three euro and ninety-four
cent
(b) €21,469.85
(c)Thirty thousand and four euro and
sixteen cent
2.(a)€500 × 22, €200 × 1, €50 × 1,
€20 × 1, €10 × 1, €2 × 1, €1 × 1,
50c × 1, 20c × 2, 2c × 2
Ans = 33
(b) €500 × 42, €200 × 2, €50 × 1,
€10 × 1, €5 × 1, €2 × 2, 50c × 1,
20c × 1, 10c × 1, 5c × 1
Ans = 53
(c)€500 × 60, €2 × 2, 10c × 1, 5c ×
1, 1c × 1 Ans = 65
F.
1.True 2.False 3.False 4.False
5.True 6.False 7.False 8.True
9.True
Test Yourself
Page 7
1.30 + 700 + 40,000 + 8,000 + 1
2.Fifty-seven thousand
3.4,500
4.39,860
5.71,870
6.85,000
7.Forty-nine thousand and eighty-seven
8.9
9.56
Topic 2: Operations
A.
1.61
3.8,750
5.1,232
7.326
9.8,900
B.
Teacher Check
C.
1.(a)14,408
(c)55,581
(e)29,518
(g)33,423
2.(a)14,143
(c)26,831
(e) 30,404
Page 8
2.924
4.200
6.37,400
8.19,461
(b)31,877
(d)16,178
(f)19,135
(b)817
(d)13,755
Topic 2: Operations
Page 9
D.
1.False
2.False 3.True 4.True
5.True
6.True
E.
1.Nile, Amazon, Chang Jiang,
Mississippi-Missouri,
Yenisei-Angara-Selenga,
Yellow River, Ob-Irtysh, Congo,
Amur-Argun, Lena River
2.250km
3.16,164km
4.Lena River
5.Ob-Irtysh
6.Yellow River
7.Amur-Argun
F.
1.22,541
2.79,995
3.11,879
Test Yourself
1.Add
3.182
5.Subtract
7.47,088
9.14,000
Page 10
2.51,000
4.64,163
6.30,519
8.11,100
10.38,529
Topic 3: Data 1
Page 11
A.
1.Pictogram
2.Horizontal bar chart
3.Pie chart
4.Multiple bar chart
5.Bar chart
6.Tally sheet
B.
1.58 boys
2.102 children
3.None
4.11
5.25.5 = 26
Topic 3: Data 1
C.
1.False
5.False
Page 12
2.False 3.False 4.False
D.
1.Teacher Check
2.Teacher Check
Test Yourself
Page 13
1.Multiple bar chart
2.Horizontal bar chart
3.56
4.Title 5.Label
6.8
7.36
Topic 4: Multiplication 1
Page 14
A.
1.(a)32 (b)48
(d)144
2.(a)80 (b)140
(d)2,400
3.(a)300
(c)3,200
(e) 20,100
B.
1.28min
3.14,560min
C.
1.(a)38,168
(c)29,350
(e) 39.2
(g)104.98
(i)380.25
2.(a)1
(b)1
(e)15 (f)25
(i)5
(j)9
3.Teacher Check
(c)96
(e)160
(c)220
(e)5,800
(b)1,100
(d)11,000
2.1,456min
4.116,480min
(b)85,248
(d)28.8
(f)253.8
(h)300.69
(c)8
(g)46
(k)12
(d)11
(h)111
(l)22
Topic 4: Multiplication 1
Page 15
D.
1.Divide or subtract 2.Subtract
3.Subtract
4.Add
5.Subtract
6.Multiply
7.Multiply or divide and subtract
E.
1.Ring Out
2.994.3c
F.
1.5.94
2.10.13
3.€24.20
4.40min
5.40c
Test Yourself
1.490
3.39,104
5.14
7.48.45km
9.$127
Page 16
2.0.11
4.2
6.€26.24
8.1,200 litres
10.873 yen
Topic 5: 2D Shapes
A.
Teacher Check
B.
1.(a)Rectangle
Page 17
(b)Parallelogram
Planet Maths Teacher Resources • 5th Class 209
(c)Isosceles triangle
(d)Hexagon
(e)Trapezium
2.
(a) Sides (b) Angles (c) Acute (d) Obtuse (e) Lines of
symmetry
Rectangle
4
4
0
0
2
Parallelogram
4
4
2
2
0
Isosceles Triangle 3
3
3
0
1
Hexagon
6
6
0
6
6
Trapezium
4
4
2
2
1
Topic 5: 2D Shapes
Page 18
C.
1.True
2.False 3.True 4.True
5.False
6.False 7.True 8.True
9.False
D.
1.E, F, H, N, W, Z
2.E, F, H, L, T
3.A, H, I, M, O, T, U, V, W, X, Y
4.B, C, D, E, H, I, K, O, X
5.H, I, O, X
E.
20 diagonals
Test Yourself
Page 19
1.Two acute and two obtuse angles
2.A triangle
3.Two lines of symmetry
4.A polygon
5.4 pairs of parallel lines
6.1 right angle
7.40˚
8.A square
Topic 6: Division 1
A.
1.7
2.9
5.11 R 4 6.2 R 2
9.11
B.
Teacher Check
C.
1.10 R 3
3.7 R 24
5.38
7.14 R 25
9.18
Topic 6: Division 1
D.
1.Divide
3.Multiply
5.Divide
E.
1.Chocolate cake
3.(a)125 (b)175
4.True
6.€11,795
Test Yourself
Page 20
3.12
7.20
4.9 R 6
8.16
Page 23
3.(a)1
A.
2
2
9
5
1.4 2.
10 3.
12 4.
6
3
1
8
9
5.4 6.
3 7.
12 8.
12
4
4
4
4 6 8
9.6 10.
10 11.
5 12.
6 , 9 , 12
B.
Teacher Check
C.
2
1
1.(a)2 5 (b)2 2 1
(c)4 4 1
(d)1 12
1
5
2
11
(e) 2 10 (f)1 9 (g)13 3 (h)1 12
2
1
(i)7 5 (j)9 2
9
25
21
11
2.(a) 4 (b)
8 (c)
2 (d)
3
23
42
103
53
(e) 4 (f)
5 (g)
10 (h)
6
48
67
(i) 5 (j)
10
3.(a)Common
(c)Common
(e)Improper
(b)Improper
(d)Mixed
(f)Common
Topic 7: Fractions 1
D.
1.True
5.False
9.False
E.
1.True
5.True
F.
2.Subtract
4.Add
2.€5
(c)225
5.Chocolate
Page 22
(g)3 5 Topic 8: Fractions 2
D.
1.True
5.True
E.
1.Dogs
3
6.11
20
9.4 10.1 3
7.3 3 8.
3
1
1
Topic 8: Fractions 2
Page 26
A.
1
2
1
1
2
1
4
2
3
3
3
9
1.2 2.
3 3.
5 4.
2
5.5 6.
4 7.
5 8.
3
9.4 10.
10 11.
5 12.
10
B.
Teacher Check
C.
3
1
1.(a) 4 (b)
2
1
1
(c)1 3 (d)
3
9
4
9
3
(e) 10 (f)1 9 (g)4 10 (h)5 8
3
(i)5 10
1
1
7
3
2.(a) 3 (b)
2 (c)
10 (d)
8
2
1
5
1
(e) 2 9 (f)1 5 (g)1 12 (h)1 2
7
(i)2 8
Planet Maths Teacher Resources • 5th Class
1
(h)7 3
2.Hamsters
4.Goldfish
6.Goldfish
5.Hamsters
F.
Page 27
2.False 3.True 4.True
6.False 7.False 8.False
1
3.8 9
3
2. 20 3.240 4. 4
Test Yourself
Page 28
1.€7
9
5.8 10
3
3
Page 24
1
3
1
(d)1 2
3
5.1 8 5
1
6.1 8 1
8
7
2
7.6 10 8.
3
28
9.12 10.
8
Topic 9: Lines and Angles
Page 29
A.
1.Obtuse
3.Straight
5.Acute
7.Reflex
5
3
7
B.
1.12 2. (a) 10 (b) 10 7
Teacher Check
3.10
C.
4.Séan, Máire, Dad, Mum
1.(a) 8
0°, Acute
(c)160°, Obtuse
Test Yourself
Page 25
(e)270°, Reflex
1
2
1.3 2.
2.Teacher Check
6
90
Page 21
(f)6
2.True 3.False 4.True
6.False 7.True 8.False
3
1
(c)1 4 (i)4 4
1
2.False 3.True 4.True
6.False 7.False 8.False
10.False
5.100 2.9 R 14
4.12 R 10
6.15
8.19
1
(e) 5 4 3
(b)3 4 1.2 2.
3.1 3 4.
4
9
3.4 4.
4
1.11
2.17
3.24
4.26
5.10 R 12 6.728 7.45 books
8.7
9.550 10.600
210
Topic 7: Fractions 1
2.Acute
4.Reflex
6.Obtuse
8.Right Angle
(b)190°, Reflex
(d)40°, Acute
(f)90°, Right Angle
Topic 9: Lines and Angles
Page 30
D.
1.False
5.True
E.
1.90°
5.180°
9.135°
F.
1.90°
2.False 3.True 4.False
6.False
2.45° 3.225° 4.90°
6.180° 7.270° 8.315°
10.315°
2.360° 3.360° 4.540°
Test Yourself
Page 31
1.Obtuse 2.Reflex3.Acute
4.360°
5.70° 6.50°
7.60°
8.125° 9.60°
Topic 10: Decimals
Page 32
A.
1
1
1.2 = 0.52.
4 = 0.25
7
67
3.100 = 0.074.
100 = 0.67
1
1
5.20 = 0.056.
5 = 0.2
9
237
7.1000 = 0.0098.
1000 = 0.237
Topic 11: Problem-Solving
Page 36
B.
1.One millisecond 2.10,000
3.60,000
C.
67
3
1.(a) 1000(b)
1000
17
747
(c) 1000(d)
1000
307
49
(e) 2 1000
(f)5 1000
1
1
(g)3 1000
(h)4 25
51
404
(i)12 1000
(j)14 1000
2.(a)0.006
(b)0.011
.
(c)0 061
(d)0.124
.
(e) 0 227
(f)0.3
.
(g)0 75
(h)1.2
.
(i)1 25
(j)2.5
3.(a)0 tenths + 2 hundredths +
1 thousandth
(b)1 tenth + 4 hundreds +
9 thousandths
(c)5 tenths + 0 hundredths +
8 thousandths
Topic 10: Decimals
D.
1.True
2.False 3.True 4.False
5.True
6.False (it is equal)
E.
1.Cheetah
2.Coyote
3.3.26km
4.6km
5.No
6.13km
F.
1.14.19kg
2.0.45km
3.€10.12
4.0.295 litres
Page 34
1.2 hundreths
2.0.956
8
4.2.94
3.1000 5.0.6
6.1 unit and 7 thousandths
3
8.5.5kg
7.10 1
9.3.29410.
1000
Topic 11: Problem-Solving
Page 35
A.
66 handshakes (12 × 11÷2)
B.
3
5
3
3
1.(a) 4 (b)
8 (c)
8 (d)
4
7
1
1
1
(e) 8 (f)
2 (g)
8 (h)
2
1
3
5
1
2.(a) 4 (b)
8 (c)
8 (d)
4
1
1
7
1
(e) 8 (f)
2 (g)
8 (h)
2
3.(a)Tile a+ tile g
(b)Tile f + tile g
(c)Tile c +tile d or tile a + tile c or
tile f + tile g + tile h
(d)Tile e + tile c
(e)Tile a + tile d
(f)Tile c +tile e + tile g
1.2
5.25
9.4
1.25
3.11, 5
5.11
7.10
9.34
Page 37
2.Carrot
4.12
6.D,V
8.20
Topic 12: Number Theory
Page 38
A.
1.Even Prime
2.Even Composite
3.Odd Prime
4.Odd Composite
5.Even Composite
6.Odd Composite
B.
1.10
2.12
3.36
4.48
C.
1.(a)5, 10, 15, 20, 25
(b)8, 16, 24, 32, 40
(c)12, 24, 36, 48, 60
(d)16, 32, 48, 64, 80
(e)20, 40, 60, 80, 100
(f)18, 36, 54, 72, 90
2.(a)6 = 1, 2, 3, 6
(b)8 = 1, 2, 4, 8
(c)14 = 1, 2, 7, 14
(d)20 = 1, 2, 4, 5, 10, 20
(e)24 = 1, 2, 3, 4, 6, 8, 12, 24
(f)37 = 1, 37
3.(a)14 (b)20 (c)24 (d)36
(e)96 (f)117
Topic 12: Number Theory
Page 39
D.
1.True
2.False 3.True 4.True
5.False
6.True 7.False 8.True
E.
1.Prime
2.Factor
3.Even
4.Product
5.Odd
6.0, 2, 4, 6 or 8
7.Even, even
8.First
9.9
10.4th
F.
1.He can have 1 row of 50, 2 rows of
25, 10 rows of 5, 25 rows of 2.
2.(a)No (b)64
Page 40
2.2
6.4
10.24
3.5
7.16
4.12
8.23
Topic 13: Multiplication 2
Page 41
3
3.10
D.
1.–4°C
2.84
3.210
E.
49 candles burn for 49 days. The 49
stubs make 7 more candles, which
each burn for 7 days, the 7 stubs
make 1 more candle which burns for
1 day. 49 + 7 + 1 = 57
Test Yourself
Page 33
Test Yourself
C.
1.16 letters 48 numbers
2.11 hours 12 minutes
Test Yourself
A.
1.20
2.300
3.1,100
4.26
5.40.8
6.55.5
7.172
8.224.8
9.1187.6
10.2449.82
B.
Teacher Check
C.
1.(a)1
(b)3
(c)14 (d)26
(e)52 (f)61 (g)64 (h)113
(i)205
2.Teacher Check
3.(a)7.52
(b)6.202
(c)21.861
(d)45.126
(e) 90.708
(f)90.46
Topic 13: Multiplication 2
Page 42
D.
1.True
5.False
E.
Name
Sinéad
William
James
Deirdre
Áine
2.False 3.True 4.True
6.True 7.False 8.True
On Jupiter
125.08kg
On Neptune
59.89kg
120.36kg
106.20kg
57.63kg
50.85kg
143.96kg
115.64kg
68.93kg
55.37kg
F.
1.55min
2.3.132kg
3.0.63km
4.60.06kg, 59.917kg
5.226.824 litres
Test Yourself
1.1
3.107
5.250
7.258.96
9.27.58kg
Topic 14: Length
A.
1.50mm
3.65mm
5.900mm
7.143mm
B.
Teacher Check
C.
1.(a)0.7cm
(c)1.5cm
Page 43
2.5
4.28
6.68.976
8.202.65km
10.4.41kg
Page 44
2.120mm
4.305mm
6.94mm
8.294mm
(b)0.9cm
(d)3.7cm
Planet Maths Teacher Resources • 5th Class 211
(e) 12.8cm
(g)7.4cm
2.(a)0.85m
(c)1.13m
(e) 5.83m
(g)2.86m
3.(a)0.005km
(c)0.138km
(e) 2.685km
(g)9.06km
4.(a)4.073m
(c)2001.34m (f)25.6cm
(h)28.4cm
(b)0.99m
(d)2.34m
(f)11.62m
(h)4.55m
(b)0.066km
(d)0.673km
(f)7.5km
(h)10.25km
(b)3.767m
(d)3423.17m
Topic 14: Length
Page 45
D.
1.True
2.True
5.True
6.False
E.
Teacher Check
F.
1.18cm 2.13m
4.1.43m 5.4m
3.False 4.True
7.True
3.0.7km
6.3.5km
Test Yourself
Page 46
7
1.6 10 cm
2.10cm 2mm
4.A mm ruler
6.Millimetres
8.17 metres
3.2.5km 5.Measuring tape
7.Kilometres
9.10m
Topic 15: Division 2
A.
1.12
2.5
5.502.5 6.5.5
9.0.9
10.0.2
B.
Teacher Check
C.
1.(a)27 (b)15
(e)11 (f)12
2.(a)10.5 (b)5.3
(e) 1.6 (f)6.9
3.(a)2.33 (b)1.96
(e) 0.31 (f)0.63
Page 47
3.123 4.205
7.7.2 8.1.2
(c)12
(d)13
(c)2.9 (d)4.3
(c)0.38 (d)0.28
Topic 15: Division 2
212
1.18
3.1.36
5.10
7.1.64
9.2.59
A.
1.(a)1hr 22min
(c)1hr 40min
(e)3hr 5min
2.(a)85min
(c)125min
(e)190min
B.
Teacher Check
C.
1.(a)11:25
(c)21:25
(e)06:20
(g)16:15
2.(a)8:35am (c)6:25pm (e)8:12pm (g)11:42pm
3.(a)08:55
(c)10:30
Page 50
(b)1hr 36min
(d)2hr 5min
(f)4hr 10min
(b)105min
(d)175min
(f)322min
(b)00:00
(d)17:30
(f)19:55
(h)12:00
(b)7:50pm
(d)5:07pm
(f)7:05am
(h)12:30am
(b)23:25
(d)16:15
Topic 16: Time
Page 51
D.
1.True
2.True 3.False 4.False
5.True
6.True 7.True 8.False
E.
1.4
2.No, the 7:15 train is 5 minutes faster
3.1hr 48min
4.05:15
5.09:31
Test Yourself
Page 48
D.
1.False
2.False 3.False 4.False
5.True
6.True 7.False 8.False
E.
1.Yes
2.95.6 sec or 1min 35.6 sec
3.956 sec or 15min 56 sec
F.
1.Divide, 2.6kg
2.Divide, 3.6km
3.Multiply, 21.6 litres
4.Divide, 4.875cm
5.Divide, 96.36m
Test Yourself
Topic 16: Time
Page 49
2.8 R 42
4.1,000
6.0.072
8.47
10.€1.27
Page 52
1.1hr 29min
2.270min
3.2.75hours
4.5 minutes to 5 in the evening
5.25 to 6 in the evening
6.10:55pm
7.1hr 18min
8.20 to 7 in the evening
Topic 17: Percentages 1
Page 53
A.
1.50%
2.50%
5.9%
6.20%
B.
1.50%
C.
1.(a)50% (b)25%
(e)40% (f)80%
2.(a)50% (b)25%
(e) 66.6%
(g)10% (h)5%
3.50% 4.60%
7.100% 8.100%
2.Teacher Check
(c)30% (d)75%
(c)75% (d)20%
(f)60%
4
1
(b)0.25, 4
3
1
(d)0.2, 5
3.(a)0.8, 5 (c)0.3, 10 1
(e) 0.05, 20 9
(g)0.45, 20 19
(f)0.95, 20
1
(h)1, 1
Planet Maths Teacher Resources • 5th Class
Topic 17: Percentages 1
Page 54
D.
1.False
2.False 3.True 4.True
5.False
6.False
E.
Teacher Check
F.
1.€40
2.18 girls 18 boys
4
2
3.50%
4. 10 or 5
5.€54
6. 5 or 24 children
4
Test Yourself
1.35%
5.42
9.120
Page 55
2.0.75 3.80% 4.9
6.15
7.100 8.16
10.112 beech 42 oak 126 ash
Topic 18: Money
A.
1.€0.09
3.€0.28
5.€2.00
7.€25.50
9.€450
B.
Teacher Check
C.
1.(a)7c (b)25c
(e)133c
(g)1,024c
(i)20,534c
2.(a)€2.94
(c)€28.43
(e) €10.39
(g)€62.00
3.(a)€0.60
(c)€0.36
(e) €1.55
Topic 18: Money
Page 56
2.€0.15
4.€1.24
6.€10.10
8.€300
10.€555.50
(c)94c (d)106c
(f)566c
(h)12,932c
(j)52,408c
(b)€12.53
(d)€43.01
(f)€50.77
(h)€16.99
(b)€0.39
(d)€0.23
(f)€0.48
Page 57
D.
1.Multiply: €0.79 × 5= €3.95
2.Add and subtract: €3.62+96c from
€5.00=42c
3.Divide and multiply: €5÷10=50c ×
15=€7.50
4.2 litres of sunflower oil costs €3.20
(a)€3.20÷2=€1.60
(b) €1.60÷2=80c or €3.20 ÷ 4 = 80c
E.
1.No
2.19 July
3.100 days
4.400 days
F.
1.€13.52
2.€18.75
.
3.€1 25
4.€3.60
5.70c
1
6.(a) 4 kg butter for 80c
(b)2 metres of rope for €6.64
7.Jackie by 25c
Test Yourself
Page 58
1.€604.83
2.126,341c
3.48
4.2% 5.0.5% 6.€2.40
7.€3.60 8.€4.95 9.55c 10.€8.50
Topic 19: Percentages 2
Page 59
A.
1.5
2.3
5.85
6.180
9.36
B.
Teacher Check
C.
1.(a)20 (b)100
(e) 133.33
(h) 35
2.(a)110 (b)50
(e)48 (f)80
3.(a)20% (b)60%
(e)75% (f)80%
3.6
7.10
4.49
8.7
(c)64
(f)30
(d)50
(g)30
(c)32
(g)45
(c)25%
(g)25%
(d)12
(h)200
(d)50%
(h)20%
2.False 3.False 4.True
6.False 7.False 8.False
10.False
Sale Price
TV
€720
DVD player
€198
Camera
€405
Laptop computer
€750
Printer
€114
Scanner
€170
2.25
6.90%
Test Yourself
1.0.3
5.25%
9.480
A.
Teacher Check
B.
Teacher Check
C.
1.(a)16m2
(c)120m2
2.
(a)
3.60% 4.€72
Page 61
2.12
3.100 4.25%
6.€90 7.€3
8.40%
10.220
Topic 20: Area
70cm2
(d)
20cm
25cm2
(e)
42cm
108cm2
3.(a)Area 14m2, Perimeter 24m
(b) Area 25m2, Perimeter 52m
Page 62
(b)64m2
Length
Width
8cm
6cm
(b)
7cm
7cm
(c)
14cm
5cm
(d)
5cm
5cm
(e)
12cm
9cm
Perimeter
Area
(a)
28cm
48cm2
(b)
28cm
49cm2
Page 63
D.
1.Window, Door
2.(a)3.6m
(b)2.5m
(c)5.7m
(d)3.9m
3.Sitting room
4.1.9m
.
.
5.11 5m 6.3 5m 7.7m
E.
2.126cm2
1.120cm2
3.9m
4.8m
Test Yourself
Item
F.
1.€96
5.75%
38cm
Topic 20: Area
Topic 19: Percentages 2
Page 60
D.
1.True
5.True
9.False
E.
(c)
1.52cm 3.6.25m2
5.1,125m2
7.276m2
2
Page 64
2.136m
4.36cm
6.€756
8.80m
2
Topic 21: Directed Numbers
Page 65
A.
–
30, –20, –15, –10, 0, 5, 15, 20, 25
B.
On the 41st day she will have
travelled 1,000 floors.
C.
1.(a)7
(b)9
(c)4
(d)14
(e)4
(f)20 (g)19 (h)20
(i)28
2.(a)Dublin, 3˚C
(b)Amsterdam, 4˚C
(c)Chicago, 19˚C
(d)St Petersburg, 6˚C
(e)Stockholm, 3˚C
(f)Tokyo, 14˚C
(g)Reykjavik, 8˚C
(h)Prague, 34˚C
(i)Budapest, 22˚C
(j)Prague, 29˚C
Topic 21: Directed Numbers
Page 66
6.Martin by +9 points
7.–€20
8.€100
9.0
10.–3
Topic 22: The Circle
Page 68
A.
1.Parallelogram
2.Trapezium
3.Right-angled triangle
4.Hexagon
5.Rhombus
6.Isosceles triangle
B.
Teacher Check
C.
1.Radius
2.Circumference
3.Diameter
4.Chord
5.Sector
6.Arc
Topic 22: The Circle
Page 69
D.
Length 42m
Width 12m
E.
1.48m2 2.60cm 3.6m
5.80mm
F.
Teacher Check
Test Yourself
1.Diameter
3.Quadrant
5.18cm
1
7.4 4.96m2
Page 70
2.Circumference
4.7cm
6.Segment
8.360
Topic 23: Rules and Properties
Page 71
A.
1.
2.X Y Z
3.€ * !
4.
B.
Teacher Check
C.
1.(a)54, 57, 60
(b)550, 570, 590
(c)256, 1,024, 4,096
(d)77, 70, 63
(e) 85.5, 75.5, 65.5
(f)16, 22, 29
(g)1,080, 6,480, 38,880
D.
1.True
2.True 3.True 4.False
5.False
6.True
E.
1.9 floors
2.39min
1 1
3.The golfer who scored –2. The score
(h) 3, 3 4 , 3 2
was 10 points better than his partner’s
3 1 7
(i)2 8 , 2 8 , 1 8
score.
9 8
4.+4c, warmer by 7˚C
(j)1, 10 , 10
2.(a)6, 8
Test Yourself
Page 67
(c)54, 36
–
1.+52.
12
(e)80, 120
3.Seville by 35˚C 4. +48˚C
(g)22, 88
5.44min
(b)21, 35
(d)120, 115
(f)99, 108
3
(h)1, 1 4
Planet Maths Teacher Resources • 5th Class 213
Topic 23: Rules and Properties
Page 72
D.
1.False
2.True 3.False 4.True
5.True
6.False 7.False 8.True
9.True 10.False
E.
1.(a)252 (b)988
2.(a)28 (b)998
3.One - 999
F.
1.Add 5
2.Prime numbers
3.Multiples of 6
4.Adding ascending odd numbers (+3,
+5, +7, +9) or squares of 1, 2, 3, 4, 5
5.Subtract 12
6.Factors of 12
7.Add 1, Add 1, Add 2, Add 1, Add 1,
Add 2
8.Factors of 28
9.Multiples of 9
10. Add 0.6
Test Yourself
Page 73
1.107, 101, 96
2.15
3.Square numbers 4.Factors of 21
5
5.6 9.×
6.9
10.–
Topic 24: Weight
A.
1.500g
3.800g
B.
Teacher Check
C.
1.(a)2kg 300g
(c)1kg 150g
(e)4kg 50g
(g)2kg 250g
2.(a)1.4kg
(c)2.04kg
(e) 0.06kg
(g)2.75kg
Topic 24: Weight
D.
1.True
2.False
5.True
6.True
9.True 10.False
E.
4 days
F.
1.86.4kg
3.8.439kg
5.€9.60
7.€13.01
Test Yourself
1.1,050g
3.4,750g
214
7.35
8.144
Page 74
2.1,200g
4.1,800g
(b)1kg 785g
(d)5kg 5g
(f)1kg 500g
(h)1kg 300g
(b)0.85kg
(d)3.009kg
(f)1.2kg
(h)3.9kg
Page 75
3.True 4.False
7.True 8.False
1
5.4 kg
7.7
9.€1.50
A.
1.False
2.True
5.False
6.False
9.False 10.True
B.
1.(a)×
(b)÷
(e)< (f)>
2.(a)200 (b)25
(e)8
(f)32
3.(a)16 (b)9
(e) 18.75 (f)21
Page 76
3
2.1 5 kg
3.False 4.True
7.True 8.True
(c)x
(d)÷
(g)+, + (h)–, +
(c)37 (d)208
(g)18 (h)12
(c)48 (d)5
(g)24 (h)18
Topic 25: Number Sentences
Page 78
C.
1.False
2.True 3.False 4.False
5.True
6.False
D.
Teacher Check
E.
1.77
2.18
3.12
Test Yourself
1.+
2.÷
5.41 = 36 + 7
7.69 – 23 = 46
Page 79
3.54
4.32
6.8 × 9 = 72
8.€13 × 3 = €39
Topic 26: 3D Shapes
Page 80
A.
1.Cuboid
2.Square-based pyramid
3.Hemisphere
4.Triangular prism
B.
Teacher Check
C.
Name
Vertices
Edges
1.
6
8
12
2.
2
0
2
3.
1
1
1
4.
1
0
1
5.
5
6
9
6.
4
4
6
7.
6
8
12
8.
5
5
8
E.
Teacher Check
F.
Shape A = Square-based pyramid
Shape B = Triangular prism
Shape C = Cube
Test Yourself
Page 82
1.Tetrahedron
2.Pentagonal prism
3.6
4.9
5.8
6.Hexagonal prism
7.Cone
8.Triangular prism
Topic 27: Data 2
Page 83
A.
1.3
2.9
3.11
4.22
5.€2.64 6.128 7.€292
8.23.7°C
1.6
5.Thai
2.2
1
1
Circle
2. Cylinder
2
2 Circles
3. Hexagonal
prism
8
2 Hexagons
6 Rectangles
4. Rectangular
-based
pyramid
5
4 Isosceles
triangles
Vertices
Edges
1. Cone
1
1
2. Cylinder
0
2
3. Hexagonal
prism
12
18
4. Rectangular
-based
pyramid
5
8
D.
1.True
E.
Page 84
2.True 3.True 4.False
1.Teacher Check
F.
Drive = 6
Bus = 3
Walk = 3
1
2. 8 Test Yourself
1.89
5.16
3
3. 4 4.
4
Topic 27: Data 2
1. Cone
Planet Maths Teacher Resources • 5th Class
Faces
B.
Teacher Check
C.
Number of 2D Shape of
faces
each face
4.2,100g
Page 81
D.
Topic 25: Number Sentences
Page 77
Name
2.0.3kg
4.50g
6.50
8.20
Topic 26: 3D Shapes
6.150g
8.€0.85
10.€1.60
3.25%
Page 85
1
2.50% 3. 6 6.27
7.24
Topic 28: Capacity
4.4
Page 86
A.
1.500m¬
2.900m¬
3.200m¬
4.800m¬
5.100m¬
6.600m¬
7.300m¬
8.700m¬
B.
1.(a)2¬ 700m¬
(c)1¬ 50m¬
(e) 1¬ 250m¬
(g)2¬ 750m¬
(i)1¬ 500m¬
2.(a)1.5¬
(c)2.03¬
3.(a)1,450m¬
(c)700m¬
(e) 2,800m¬
(g)700m¬
(i)50m¬
4.(a)800m¬
(c)600m¬
(e) 990m¬
(g)50m¬
(i)10m¬
(b)3¬ 500m¬
(d)2¬ 5m¬
(f)0¬ 500m¬
(h)0¬ 800m¬
(j)0¬ 750m¬
(b)2.35¬
(d)2.6¬
(b)950m¬
(d)1,300m¬
(f)750m¬
(h)2,750m¬
(j)2m¬
(b)700m¬
(d)250m¬
(f)950m¬
(h)50m¬
(j)106m¬
Topic 28: Capacity
Page 87
C.
1.1 litre
1
2. 10
7.42m¬
9.250m¬
Topic 29: Chance
3
4.5
5.€11.20
Test Yourself
Page 88
1
1.100m¬2.
5
3.1¬ 50m¬
4.50m¬
5.250m¬
6. 4 ¬itre
1
Page 89
A.
Teacher Check
B.
Teacher Check
C.
1
1
1
1
1
1
(c) 6 (d)
4
Topic 29: Chance
Page 90
D.
1.False
2.True
3.True
4.False
5.True
E.
Teacher Check
Test Yourself
Page 91
1.1 in 2
2.1 in 4
3.Blue
4.Yellow
5.Car
6.Bus
7.A train as a bicycle
Let’s Look Back
A.
1.(a) 600
2.(a) 1,000
3.(a) 9
4.(a) 40
5.(a) 800 6.(a) 80
B.
1.(a)1,213
(c)8,619
(e)5,435
2.(a)0.1 (b)0.3
(e) 0.11 (f)2.79
C.
1.(a)11:59
(c)5:40
(e) 9:31
2.(a)6:10
(c)2:30
(e) 3:45
(b)15:10
(d)7:45
(b)10:20
(d)12:45
Let’s Look Back
1.(a) 6 (b)
6 (c)
2 (d)
2
2.(a)Purple
(b)Yellow, black and green
1
3.5 4.25%
5.150m¬
6.100m¬
D.
Fill the 4 litre container and then fill
the 3 litre container from the 4 litre
one. There will be exactly 1 litre left
in the 4 litre container.
E.
1.165m¬
2.250m¬
3.100m¬
8.1300 m¬
10.20%
Page 92
(b)six hundred
(b)one thousand
(b)nine units
(b)forty
(b)eight hundred
(b)eighty
(b)2,125
(d)839
(f)6,733
(c)0.7 (d)1.9
Page 93
D.
1.(a)1,885
(b)31
(c)3,502
(d)41 R 1
(e)14 R 7
2.(a)37 R 3
(b)34.23
.
(c)2 61
(d)1.58
(e) 49.52
E.
1.Equilateral triangle
2.Pentagon
3.Square
4.Isosceles triangle
5.Parallelogram
6.Hexagon
7.Circle
8.Rhombus
F.
1.(a)8
(b)12 (c)21 (d)42
(e)1
(f)15 (g)12 (h)20
1
3
3
1
2
2
10
4
2.(a) 2 (b)
9 (c)
4 (d)
5
(e) 3 (f)
5 (g)
12 (h)
5
Test Yourself
Pages 94 and 95
39
1
1
7
1.10 2.4 2 3.
4.7 8
2
5.a = reflex, b = acute
6.3 thousandths
7.0.053
8.3, 6, 9, 12
9.48
10.11, 13, 17, 19 11.36m
12. 3.17
13.0.07
14.21:40
15.14:38
16. 0.4
17.80%
18.€18
19.€160
20. Even
Planet Maths Teacher Resources • 5th Class 215