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 · 15 questions

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1.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
2.Write down the reciprocal of 0.2
(a)−0.2
(b)0.8
(c)5
(d)0.5
3.Work out (−36) ÷ (−6) × 2
(a)3
(b)6
(c)12
(d)−12
4.Work out (−3) × 4 + 10
(a)−42
(b)−2
(c)−22
(d)22
5.Work out 20 − 8 ÷ 2 + 1
(a)16
(b)15
(c)7
(d)17
6.Work out 5 + 3 × (9 − 6)
(a)14
(b)24
(c)9
(d)26
7.Insert one pair of brackets into 2 + 3 × 5 − 1 so that the calculation is equal to 24. Which calculation is correct?
(a)(2 + 3 × 5) − 1
(b)(2 + 3) × 5 − 1
(c)2 + 3 × (5 − 1)
(d)(2 + 3) × (5 − 1)
8.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
9.Work out 36 ÷ (2 × 3)
(a)216
(b)54
(c)6
(d)18
10.Work out (−6) + (−4) × 3
(a)−30
(b)−18
(c)18
(d)6
11.Work out 2 × (−3 + 7)
(a)1
(b)6
(c)−20
(d)8
12.Write down the reciprocal of 5/8
(a)−8/5
(b)8/5
(c)5/8
(d)3/8
13.Find the missing number: ▢ ÷ 15 = 24
(a)360
(b)39
(c)9
(d)1.6
14.Work out 3 + 4 × 2²
(a)28
(b)67
(c)196
(d)19
15.Find the missing number: 17 × ▢ = 391
(a)23
(b)374
(c)17
(d)6647

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