Term 2 review
Answers are for parents and teachers.
1
Find 5/6 + 3/4 and 5/6 − 3/4.
10/12 + 9/12 = 19/12 = 1 7/12. 10/12 − 9/12 = 1/12.
2
Find 3 1/3 + 2 5/6 and 7 − 2 3/5.
3 2/6 + 2 5/6 = 5 7/6 = 6 1/6. 7 − 2 3/5 = 6 5/5 − 2 3/5 = 4 2/5.
3
Find 3/4 × 2/9 and 1 1/2 ÷ 3.
3/4 × 2/9 = 6/36 = 1/6. 1 1/2 ÷ 3 = 3/2 ÷ 3 = 3/6 = 1/2.
4
A box is 6 cm long, 5 cm wide and 4 cm high. Find its volume. A rectangle is 9 cm long and 4 cm wide. Find its area.
Volume 6 × 5 × 4 = 120 cubic cm. Area 9 × 4 = 36 square cm.
5
In a survey of 20 children, 5 chose football. What is the angle of the football sector and what percent is it?
5/20 = 1/4 = 25%, and 1/4 of 360° = 90°.