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.Work out the reciprocal of (2 + 3)
(a)1/5
(b)5/6
(c)5
(d)−1/5
2.Write down the reciprocal of 5/8
(a)−8/5
(b)8/5
(c)5/8
(d)3/8
3.Find the missing number: ▢ ÷ 15 = 24
(a)360
(b)39
(c)9
(d)1.6
4.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
5.Work out 36 ÷ (2 × 3)
(a)216
(b)54
(c)6
(d)18
6.Work out 20 − 8 ÷ 2 + 1
(a)16
(b)15
(c)7
(d)17
7.Work out 3 + 4 × 2²
(a)28
(b)67
(c)196
(d)19
8.Work out (−2)² − 3
(a)−7
(b)1
(c)25
(d)−1
9.Work out 100 − 4 × 5²
(a)0
(b)2400
(c)60
(d)−300
10.Work out (−3) × 4 + 2 × (−5)
(a)−22
(b)50
(c)−2
(d)22
11.Work out ((−3) + 5) × (−4) − (−6) ÷ 2
(a)−11
(b)−1
(c)−5
(d)11
12.Work out the value of √(16 + 9)
(a)5
(b)12
(c)7
(d)−5
13.Work out (−3) × 4 + 10
(a)−42
(b)−2
(c)−22
(d)22
14.Work out √144 − 2 × 3 + √25
(a)35
(b)11
(c)1
(d)7
15.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)

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