Solve these questions. Show your working clearly. Each question carries 4 marks
1. Compute the sum of each series by finding the difference in each pair first.
a. 24 – 22 + 20 – 18 + 16 – 14 + 12 – 10
b. 24 – 21 + 18 – 15 + 12 – 9 + 6 – 3
c. 2 + 4 + 6 + 8 + 10 – (1 + 3 + 5 + 7 + 9)
d. 10 + 1 – 2 + 3 – 4 + 5 -6 + 7 – 8
2. Find the missing numbers.
3. Given the time, draw the hour and minute hands on each clock.
a. 6.30
b. 9.15
c. 8.40
4. Melissia is 6 years old. Mark is 9 years old. How old will Mark be when Melissa is 15 years old?
5. There are 15 lamp posts along a road. There is a tree between every two lamp posts. How many trees are there along the road?
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