Page 209 - SK Year 5 Mathematics DLP

ADDITION OF UNITS OF VOLUME OF LIQUID

1

1
5 1.875 125 m
2
a Calculate the total volume of blue and yellow paints.
1
1.875 + 5 =
2 0 5.5
1 11 2 1 1 .0
1.875 + 5 = 1.875 +
2 2 −0
1 1
= 1.875 + 5.5 − 1 0
1 0
= 7.375 1
1 .8 7 5 − 1 0
+ 5.5 0 0 0
7 .3 7 5
1
1.875 + 5 = 7.375
2
The total volume of blue and yellow paints is 7.375 .

b Find the total volume of blue and red paints.

1.875 + 125 m = m

1.875 + 125 m = (1.875 × 1 000) m + 125 m
= 1 875 m + 125 m
= 2 000 m

1.875 + 125 m = 2 000 m

The total volume of blue and red paints is 2 000 m .

The total volume of the three paints is more
than 8 . Is this statement true? Prove it.

201
5.3.2 • Stress that the unit of volume must be the same before
performing addition.