Mel Cross
DECIMALS: ADDITION AND SUBTRACTION
Decimal notation is used to show that there is a fractional part of the whole number left over. The decimal point,
separates these 2 parts. 2.5 cm tells us that there are 2 whole centimetres and 5 millimetres left over. Apply your
Year 5 knowledge of measurement conversions to complete the following:
a
2.5 cm =
mm
a
3.54 m =
cm
a
0.555 kg =
g
b
0.7 cm =
mm
b
6.09 m =
cm
b
0.55 kg =
g
c
0.8 cm =
mm
c
0.95 m =
cm
c
0.5 kg =
g
d
1 cm =
mm
d
0.05 m =
cm
d
4.2 kg =
g
e
0.006 kg =
g
e 5 cm =
mm
d 4m=
cm
Estimate a reasonable answer, before completing the following sums.
Set out carefully in neat columns.
a
3.06 + 12.55 + 9.66 + 20.52
b
c
5.313 + 1.099 + 8.088 + 56.734 + 9.015
d
!
e
9.74 – 3.85
f
6.3 – 0.89
3.86 + 7.91 + 3.89 + 4.7 + 6
4.963 – 3.88
How does this relate to my real life?
Use the Snack Shack menu to budget recess and lunch
for Tuesday – Friday. You have a generous budget of
$30. Write a list of what you will buy and use your maths
skills to come up with a total price and the amount of
change you should receive from $30.
Homework Grid 2