Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 37 · 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.Check with nines: 29 × 70 = 2030. Correct or wrong? (a) wrong (b) correct
2. 2.302 + 98 =
3. 3.58 × 8 =
4. 4.16 × 16 =
5. 5.13 + 25 + 42 + 61 =
6. 6.8 + 2 + 2 + 8 =
7. 7.357 − 87 =
8. 8.308 + 38 =
9. 9.29 × 4 =
10. 10.50 × 4 =
11. 11.Check with nines: 744 + 916 = 1660. Correct or wrong? (a) wrong (b) correct
12. 12.Best estimate of 92 × 38? (a) 7200 (b) 3600 (c) 36000 (d) 360
13. 13.406 + 48 =
14. 14.Check with nines: 99 × 59 = 5841. Correct or wrong? (a) correct (b) wrong
15. 15.Check with nines: 612 + 818 = 1430. Correct or wrong? (a) correct (b) wrong
16. 16.177 + 58 =
17. 17.69 × 50 =
18. 18.Best estimate of 69 × 39? (a) 5600 (b) 2800 (c) 28000 (d) 280
19. 19.55 + 12 + 24 + 25 =
20. 20.5% of 50 =
21. 21.91² =
22. 22.2 + 2 + 1 + 9 =
23. 23.25% of 240 =
24. 24.39 + 73 + 61 + 50 =
25. 25.20% of 80 =
26. 26.55 × 50 =
27. 27.90 × 50 =
28. 28.14 × 5 =
29. 29.₹12.95 + ₹36.30 =
30. 30.152 − 97 =
31. 31.₹59.55 + ₹16.55 =
32. 32.20% of 700 =
33. 33.20% of 850 =
34. 34.39² =
35. 35.52 × 4 =
36. 36.Best estimate of 99 × 4? (a) 400 (b) 40 (c) 4000 (d) 800
37. 37.Best estimate of 81 × 72? (a) 11200 (b) 5600 (c) 560 (d) 56000
38. 38.75 ÷ 25 =
39. 39.₹59.05 − ₹49.10 =
40. 40.136 + 27 =

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