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.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)
2.Work out √25 + 4² − 12 ÷ 3
(a)9
(b)17
(c)3
(d)37
3.Work out 2 × (−3 + 7)
(a)1
(b)6
(c)−20
(d)8
4.Work out 3 × (−2)² − 5
(a)7
(b)−3
(c)31
(d)−17
5.Work out 3 + 4 × 2²
(a)28
(b)67
(c)196
(d)19
6.A shop buys boxes of pens for £4 each. It sells each box on to a school for £3 more than it paid, and charges an extra £2 delivery fee for the whole order. A school orders 5 boxes. Work out the total cost of the order.
(a)£45
(b)£37
(c)£25
(d)£22
7.Find the missing number: ▢ ÷ 15 = 24
(a)360
(b)39
(c)9
(d)1.6
8.Work out (−3) × 4 + 10
(a)−42
(b)−2
(c)−22
(d)22
9.Work out (−2)² − 3
(a)−7
(b)1
(c)25
(d)−1
10.Work out 18 − 4 × 2
(a)12
(b)−10
(c)10
(d)28
11.Work out 100 − 4 × 5²
(a)0
(b)2400
(c)60
(d)−300
12.Work out (−36) ÷ (−6) × 2
(a)3
(b)6
(c)12
(d)−12
13.Work out (−3) × 4 + 2 × (−5)
(a)−22
(b)50
(c)−2
(d)22
14.Work out 36 ÷ (2 × 3)
(a)216
(b)54
(c)6
(d)18
15.Write down the reciprocal of 5/8
(a)−8/5
(b)8/5
(c)5/8
(d)3/8

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