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.Work out (−6) + (−4) × 3
(a)−30
(b)−18
(c)18
(d)6
2.Work out 3 × (−2)² − 5
(a)7
(b)−3
(c)31
(d)−17
3.Work out 36 ÷ (2 × 3)
(a)216
(b)54
(c)6
(d)18
4.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
5.Work out √25 + 4² − 12 ÷ 3
(a)9
(b)17
(c)3
(d)37
6.Find the missing number: 17 × ▢ = 391
(a)23
(b)374
(c)17
(d)6647
7.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
8.Work out 100 − 4 × 5²
(a)0
(b)2400
(c)60
(d)−300
9.Work out 20 − 8 ÷ 2 + 1
(a)16
(b)15
(c)7
(d)17
10.Work out (5 + 2) × 3²
(a)147
(b)63
(c)23
(d)441
11.Work out 2 × (−3 + 7)
(a)1
(b)6
(c)−20
(d)8
12.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
13.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)
14.Find the missing number: ▢ ÷ 15 = 24
(a)360
(b)39
(c)9
(d)1.6
15.Work out (−3) × 4 + 10
(a)−42
(b)−2
(c)−22
(d)22

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