Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 986 · 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. 1.60 − 28 =
2. 2.50% of 370 =
3. 3.18 × 16 =
4. 4.7 + 5 + 2 + 3 =
5. 5.61 × 15 =
6. 6.700 ÷ 5 =
7. 7.Check with nines: 335 + 419 = 758. Correct or wrong? (a) wrong (b) correct
8. 8.₹29.05 − ₹11.15 =
9. 9.9 + 5 + 1 + 5 =
10. 10.9 × 15 =
11. 11.Best estimate of 102 × 3? (a) 3000 (b) 600 (c) 30 (d) 300
12. 12.210 − 27 =
13. 13.31² =
14. 14.344 − 17 =
15. 15.1% of 400 =
16. 16.21 + 54 + 16 + 87 =
17. 17.95 + 37 =
18. 18.5% of 840 =
19. 19.9 + 6 + 4 + 9 + 1 =
20. 20.Check with nines: 348 + 994 = 1342. Correct or wrong? (a) wrong (b) correct
21. 21.70 × 8 =
22. 22.₹37.50 + ₹27.70 =
23. 23.Best estimate of 69 × 78? (a) 560 (b) 11200 (c) 5600 (d) 56000
24. 24.12 × 12 =
25. 25.Check with nines: 665 + 288 = 953. Correct or wrong? (a) wrong (b) correct
26. 26.29 × 8 =
27. 27.28 × 4 =
28. 28.₹26.05 + ₹28.90 =
29. 29.14 × 17 =
30. 30.65 + 18 =
31. 31.422 + 38 =
32. 32.71² =
33. 33.49² =
34. 34.176 − 98 =
35. 35.2 + 3 + 8 + 9 =
36. 36.1800 ÷ 50 =
37. 37.1 + 5 + 2 + 2 + 9 =
38. 38.53 + 30 + 33 + 63 =
39. 39.71 + 26 + 12 + 59 =
40. 40.47 × 4 =

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