02-NelsonMathGr5-Chap02
6/29/04
3:34 PM
Page 54
CHAPTER 2
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14. Write a decimal to fit each description.
a) one tenth greater than 4.17
c) one hundredth greater than 4.17
b) one tenth less than 3.06
d) one hundredth less than 3.60
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15. Rename each number as a decimal tenth or a decimal
hundredth.
a) 3.40
b) 2.6
c) 12.50
d) 4.2
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LESSON
1
17. Baseboard is sold in tenths of a metre.
How much baseboard should a carpenter buy for
a wall that is 3.67 m long?
Complete each number sentence using < or >.
a) 1.3 ■ 2.4
c) 2.81 ■ 3.16
b) 0.43 ■ 1.23
d) 3.0 ■ 0.35
3
3. The population of Orillia was reported as 27 954 in 1996.
Describe or sketch three ways to model this population
with fewer than 100 base ten blocks.
4
4. What five-digit numbers can you create using all of the
digits 3, 3, 5, 5, and 5? Which number is the greatest?
5. The number of fast food restaurants Canada reported in
2003 fits these clues:
• The sum of the digits is 17.
• It is an even number between 17 000 and 18 000.
• There are two pairs of digits that have a difference of 6.
• No digit is greater than 7.
• The number is less than 17 100.
How many fast food restaurants were there in 2003?
e) 1.43 ■ 2.6
f) 2.14 ■ 2.40
19. Order each set of numbers from least to greatest.
a) 3.91, 1.9, 1.39, 9.3
c) 7.05, 5.07, 7.5, 0.57
b) 1.13, 3.11, 1.3, 1.33
d) 10.03, 1.30, 3.01, 3.31
11 20.
1. Estimate the number of pencil cases needed
to hold 10 thousand pennies. Show your work.
2. Estimate the height of a stack of 50 thousand pennies.
Show your work.
16. Round each decimal to the nearest whole number and
to the nearest tenth.
a) 2.06
c) 16.81
e) 7.83
g) 3.89
b) 7.72
d) 5.45
f) 22.70
h) 6.04
10 18.
Problem Bank
Estimate each amount of money. Then count the total.
a)
6. In these two numbers, each digit between 0 and 9
appears only once. Complete the numbers.
Determine all possible answers.
■■ 249 > ■■ 173
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7. A number is increased by 3 when it is rounded to the
nearest ten thousand or to the nearest thousand.
What could the number be?
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8. Shade your first and last initials on
10-by-10 grids. What decimal hundredth
is shaded for each letter? Which number
is greater?
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9. What set of 5 bills and 16 coins is worth $152.90?
b)
21. What bills and coins can you use to make these amounts
with the fewest number of bills and coins possible?
You can use $20 bills, $10 bills, $5 bills, and any coins.
a) $100.75
b) $29.35
c) $135.17 d) $220.21
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