Printable · GCSE Foundation · ages 14-16

Inverse operations and priority of operations worksheet — GCSE Foundation

Fifteen questions on "inverse operations and priority of operations" — DfE statement N3. Print it, or print three versions so neighbours cannot copy by letter; the key gives the letter for each version.

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Inverse operations and priority of operations worksheet — GCSE Foundation

Maths · GCSE Foundation · N3 · Inverse operations and priority of operations · Non-calculator · 15 questions

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1.Grace works out 7 × 99 by writing 99 as 100 − 1. Use her method to work out 7 × 99.
(a)707
(b)700
(c)693
(d)699
2.Work out 36 ÷ (2 × 3)
(a)216
(b)54
(c)6
(d)18
3.Four students work out 6 + 2 × 3. Which student has worked it out correctly?
(a)Chen: 6 × 2 = 12, then 12 + 3 = 15
(b)Dev: 2 × 3 = 5, then 6 + 5 = 11
(c)Ben: 2 × 3 = 6, then 6 + 6 = 12
(d)Amy: 6 + 2 = 8, then 8 × 3 = 24
4.Work out (−36) ÷ (−6) × 2
(a)3
(b)6
(c)12
(d)−12
5.Work out √25 + 4² − 12 ÷ 3
(a)9
(b)17
(c)3
(d)37
6.Find the missing number: ▢ ÷ 15 = 24
(a)360
(b)39
(c)9
(d)1.6
7.A number is multiplied by 4, then 8 is added, giving the result 40. Work out the number.
(a)8
(b)128
(c)2
(d)12
8.Work out √144 − 2 × 3 + √25
(a)35
(b)11
(c)1
(d)7
9.Work out (5 + 2) × 3²
(a)147
(b)63
(c)23
(d)441
10.Work out 3 × (−2)² − 5
(a)7
(b)−3
(c)31
(d)−17
11.Write down the reciprocal of 5/8
(a)−8/5
(b)8/5
(c)5/8
(d)3/8
12.Work out 5 + 3 × (9 − 6)
(a)14
(b)24
(c)9
(d)26
13.Work out (−2)² − 3
(a)−7
(b)1
(c)25
(d)−1
14.A number is divided by 5, then 6 is subtracted, giving the result −1. Work out the number.
(a)25
(b)−5
(c)1
(d)−35
15.Write down the reciprocal of 0.2
(a)−0.2
(b)0.8
(c)5
(d)0.5

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