Page 192 - SK Year 5 Mathematics DLP

3 How much longer is the Penang Bridge compared
to the Terengganu Drawbridge?
13.5 km – 638 m = km
14 9
2 41010
638 m = (638 ÷ 1 000) km
1 3 . 5 0 0 km
= 0.638 km – 0 . 6 3 8 km
1 2 . 8 6 2 km
Terengganu Drawbridge
638 m
13.5 km – 638 m = 12.862 km

The length of the Penang Bridge is 12.862 km
longer than the length of the Terengganu
Penang Bridge Drawbridge.
13.5 km

7
4 90 km – 34.3 km – 1 180 m = m
8

7 7 34.3 km = (34.3 × 1 000) m
90 km = 90 km + km
8 8 = 34 300 m
7 125
= (90 × 1 000) m + ( × 1 000) m 8 10 4 17
8
1 90 8 7 5 m 56 5 7 5 m
= 90 000 m + 875 m – 34 3 0 0 m – 1 1 8 0 m
= 90 875 m 56 5 7 5 m 55 3 9 5 m

7
90 km – 34.3 km – 1 180 m = 55 395 m
8

1
Emperor Penguin’s height: 1. m – m = 1.15 m

The number on is the same.
What is the number?

Calculate these.
9
a 53.1 cm – 12.9 cm = cm b 67.8 cm – 2 cm = mm
10
3 3
c 18 km – 6.509 km = km d 4.15 m – 72 cm – 1 m = m
4 5
3
1
e 30 m – 340 cm – 25.7 m = cm f 26 km – 8 km 85 m – 9.27 km = m
2 4

184 • Carry out a quiz in groups involving subtraction up to three
5.1.4
measurements of length.