Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 159 · 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. 1.30 × 4 =
2. 2.21 × 8 =
3. 3.Check with nines: 917 + 182 = 1099. Correct or wrong? (a) wrong (b) correct
4. 4.Check with nines: 41 × 61 = 2501. Correct or wrong? (a) wrong (b) correct
5. 5.212 − 57 =
6. 6.478 + 57 =
7. 7.10 × 15 =
8. 8.54 + 78 =
9. 9.Best estimate of 502 × 3? (a) 15000 (b) 150 (c) 3000 (d) 1500
10. 10.26 + 89 =
11. 11.Check with nines: 72 × 32 = 2304. Correct or wrong? (a) correct (b) wrong
12. 12.Check with nines: 540 + 219 = 759. Correct or wrong? (a) wrong (b) correct
13. 13.57 × 5 =
14. 14.5% of 420 =
15. 15.Check with nines: 99 × 68 = 6732. Correct or wrong? (a) wrong (b) correct
16. 16.13 × 14 =
17. 17.100 × 4 =
18. 18.22 × 8 =
19. 19.59² =
20. 20.43 + 38 + 39 + 67 =
21. 21.253 + 69 =
22. 22.75 × 4 =
23. 23.2 + 7 + 2 + 6 + 3 =
24. 24.20% of 380 =
25. 25.343 + 67 =
26. 26.1 + 4 + 7 + 6 + 4 =
27. 27.₹70.15 + ₹18.45 =
28. 28.9 × 15 =
29. 29.50 + 87 + 48 + 52 =
30. 30.17 + 28 + 64 + 67 =
31. 31.3 + 9 + 1 + 5 + 6 =
32. 32.61 × 15 =
33. 33.395 − 39 =
34. 34.₹45.75 − ₹19.15 =
35. 35.76 + 99 =
36. 36.59² =
37. 37.22 × 5 =
38. 38.149 + 29 =
39. 39.277 + 67 =
40. 40.9 × 15 =

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