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.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
2.Find the missing number: ▢ ÷ 15 = 24
(a)360
(b)39
(c)9
(d)1.6
3.Work out 18 − 4 × 2
(a)12
(b)−10
(c)10
(d)28
4.Find the missing number: 17 × ▢ = 391
(a)23
(b)374
(c)17
(d)6647
5.Work out (−3) × 4 + 2 × (−5)
(a)−22
(b)50
(c)−2
(d)22
6.Work out (5 + 2) × 3²
(a)147
(b)63
(c)23
(d)441
7.Work out √144 − 2 × 3 + √25
(a)35
(b)11
(c)1
(d)7
8.Work out ((−3) + 5) × (−4) − (−6) ÷ 2
(a)−11
(b)−1
(c)−5
(d)11
9.Work out (−36) ÷ (−6) × 2
(a)3
(b)6
(c)12
(d)−12
10.Work out 100 − 4 × 5²
(a)0
(b)2400
(c)60
(d)−300
11.Work out (−2)² − 3
(a)−7
(b)1
(c)25
(d)−1
12.Write down the reciprocal of 0.2
(a)−0.2
(b)0.8
(c)5
(d)0.5
13.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
14.Write down the reciprocal of 5/8
(a)−8/5
(b)8/5
(c)5/8
(d)3/8
15.Work out 36 ÷ (2 × 3)
(a)216
(b)54
(c)6
(d)18

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