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​​​Number: Quiz 9

1) Work out the following calculations without using a calculator.

a) 10 + 3 x 7 – 3

b) 10 x 2 – 32

c) 22 + 3 x 7

d) (9 + 3) ÷ 4

e) (23 x 32) ÷ (32 ÷ 22)

f) (4 – 3 x 2 + 9)2

g) 12 – 9 ÷ 3 + 7

h) (33 – (5 x 3 + 4)) – (102 – 72)