Page 96 - Math Smart - 7

Check My
Understanding

O Arrange the measurements in descending order.

a) 250 g 0.55 kg 0.525 kg 1250 g
b) 250 m^ 2.5^ 250^ 25 m^
c) 325 m 3.25 km 3.251 km 3251 cm
d) 302 mm 0.3 m 320 mm 0.03 m

e) 101 cm 0.99 m 909 mm 98 cm
During an experiment, Cheng measured the growth of green beans under different
conditions. He recorded the heights of the bean plants 18 days after planting the seeds.

Bean Height of Bean Plant
A 1.01 cm
B 11.4 mm
C 1.11 cm
D 11.04 mm

Cheng wants to compare the heights of each bean plant to find
out which bean grew the fastest. Help him order the heights of
the bean plants in descending order.

The reading on Stopwatch A is 3 minutes and 52.17 seconds.
Write the following times in order from fastest to slowest.
Stopwatch A Stopwatch B Stopwatch C Stopwatch D
✓-X <-X

5:50.0^ d: 1.50
1

3 X /■ X 3 X ^ X

o Goh is writing an article in the local newspaper comparing the
prices of the silver pomfret fish at a fish market. He compared
the prices of the fish from four different fish shops.

Shop Price per kg
A $20.35

B $29.99
C $20.89
D $29.90

Arrange the shops in order of price from cheapest to most
expensive.

UNIT 4 I Decimals