Lesson N14
N14 estimate answers Quiz: Pearson Edexcel Maths, Unit 1
20 questions
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Lesson N14, estimate answers: 20 multiple choice questions for the Pearson Edexcel GCSE Maths (1MA1), Unit 1: Number, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
Estimate 48 × 52 by rounding each number to 1 significant figure first.
- 3000
- 2500
- 2000
- 2400
-
Round 0.0382 to 1 significant figure.
- 0.4
- 0.04
- 0.03
- 0.038
-
Which is a sensible estimate of 19.8 ÷ 0.39?
- 0.5
- 5
- 50
- 500
-
Which calculation is a suitable estimate to verify 2.97 × 41?
- 2 × 40
- 2 × 41
- 3 × 50
- 3 × 40
-
Estimate 612 + 389 by rounding each number to the nearest hundred.
- 1000
- 900
- 1001
- 1100
-
Estimate 21.7 × 4.8 by rounding each number to 1 significant figure.
- 1000
- 100
- 50
- 10
-
Estimate 1/8 of 3962.
- 800
- 500
- 300
- 40
-
Which is the best estimate of 6.8 × 9.7?
- 70
- 60
- 7
- 700
-
Estimate 2 997 ÷ 58.
- 500
- 5
- 50
- 5000
-
Estimate 0.53 × 812.
- 40
- 400
- 4000
- 4
-
Estimate √98.
- 100
- 49
- 7
- 10
-
Estimate 1 ÷ 0.19 + 3.9.
- 11
- 4.9
- 5
- 9
-
A shop sells 289 tickets at £19.80 each. Which is the best estimate of the total income?
- £6000
- £60000
- £600
- £60
-
Estimate 7.8² by rounding 7.8 to the nearest whole number.
- 49
- 56
- 81
- 64
-
Estimate 0.49 × 61.8.
- 300
- 30
- 15
- 20
-
Round 19.6 and 0.31 up to 1 significant figure, then multiply the rounded numbers. What is the estimate?
- 6
- 5.7
- 0.8
- 8
-
Rounding 1.02 to 1 and 7.96 to 8 gives an estimate of 8. Is this an overestimation or underestimation compared to 8.12?
- an underestimate
- random error
- exact value
- an overestimate
-
Estimate the mean of 11.8, 19.2 and 27.9 by rounding each value to the nearest 10 first.
- 20
- 25
- 30
- 15
-
Estimate 4 999 × 0.0203 by rounding to 1 significant figure.
- 1000
- 10
- 1
- 100
-
Which is the closest estimate of (5.9)² − (3.1)²?
- 9
- 36
- 25
- 18
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