Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 653 · 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. 1.20% of 620 =
2. 2.69 × 5 =
3. 3.46 × 4 =
4. 4.31² =
5. 5.37 + 78 =
6. 6.75 × 5 =
7. 7.1000 ÷ 50 =
8. 8.1 + 9 + 2 + 8 =
9. 9.Check with nines: 84 × 31 = 2604. Correct or wrong? (a) wrong (b) correct
10. 10.14 × 11 =
11. 11.Check with nines: 82 × 31 = 2546. Correct or wrong? (a) correct (b) wrong
12. 12.₹52.75 + ₹5.15 =
13. 13.₹83.85 + ₹29.15 =
14. 14.25% of 520 =
15. 15.₹46.50 − ₹10.85 =
16. 16.16 × 19 =
17. 17.1400 ÷ 25 =
18. 18.4 + 3 + 7 + 5 + 6 =
19. 19.Best estimate of 703 × 4? (a) 28000 (b) 280 (c) 2800 (d) 5600
20. 20.43 + 87 + 24 + 56 =
21. 21.29 × 5 =
22. 22.152 − 78 =
23. 23.43 × 15 =
24. 24.392 + 47 =
25. 25.43 + 78 =
26. 26.69² =
27. 27.₹48.50 − ₹21.25 =
28. 28.126 × 4 =
29. 29.3 + 5 + 8 + 2 =
30. 30.Check with nines: 48 × 57 = 2736. Correct or wrong? (a) correct (b) wrong
31. 31.2 + 9 + 7 + 2 + 1 =
32. 32.16 × 17 =
33. 33.1% of 300 =
34. 34.₹55.35 + ₹12.75 =
35. 35.₹12.25 + ₹11.35 =
36. 36.77 + 41 + 78 + 16 =
37. 37.32 × 15 =
38. 38.Check with nines: 84 × 45 = 3781. Correct or wrong? (a) wrong (b) correct
39. 39.29² =
40. 40.246 + 89 =

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