Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 852 · 40 questions

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

1. 1.Best estimate of 297 × 3? (a) 9000 (b) 1800 (c) 900 (d) 90
2. 2.60 × 5 =
3. 3.18 × 12 =
4. 4.14 × 17 =
5. 5.236 + 77 =
6. 6.501 − 26 =
7. 7.430 ÷ 5 =
8. 8.460 + 37 =
9. 9.Best estimate of 72 × 58? (a) 4200 (b) 420 (c) 42000 (d) 8400
10. 10.23 × 15 =
11. 11.950 ÷ 50 =
12. 12.29² =
13. 13.54 + 30 + 15 + 88 =
14. 14.Check with nines: 54 × 35 = 1888. Correct or wrong? (a) correct (b) wrong
15. 15.32 × 50 =
16. 16.18 × 13 =
17. 17.52 × 8 =
18. 18.₹9.50 + ₹22.85 =
19. 19.Check with nines: 178 + 578 = 764. Correct or wrong? (a) correct (b) wrong
20. 20.78 × 5 =
21. 21.77 + 11 + 71 + 71 =
22. 22.1 + 2 + 8 + 5 + 2 =
23. 23.37 × 5 =
24. 24.11 × 13 =
25. 25.35 × 5 =
26. 26.9 × 15 =
27. 27.118 − 77 =
28. 28.420 + 97 =
29. 29.19 × 13 =
30. 30.1 + 7 + 9 + 8 =
31. 31.152 × 4 =
32. 32.Check with nines: 98 × 40 = 3920. Correct or wrong? (a) correct (b) wrong
33. 33.12 × 11 =
34. 34.422 + 98 =
35. 35.20% of 220 =
36. 36.153 + 27 =
37. 37.27 × 8 =
38. 38.75 × 50 =
39. 39.Best estimate of 97 × 4? (a) 400 (b) 4000 (c) 40 (d) 800
40. 40.60 × 4 =

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