Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 261 · 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. 1.16 × 18 =
2. 2.196 − 46 =
3. 3.10% of 260 =
4. 4.77 × 5 =
5. 5.₹69.05 − ₹7.25 =
6. 6.81 − 66 =
7. 7.54 × 15 =
8. 8.19² =
9. 9.150 ÷ 25 =
10. 10.19 × 15 =
11. 11.32 + 64 + 80 + 57 =
12. 12.Best estimate of 399 × 8? (a) 320 (b) 6400 (c) 3200 (d) 32000
13. 13.66 × 50 =
14. 14.286 − 66 =
15. 15.Check with nines: 61 × 25 = 1525. Correct or wrong? (a) wrong (b) correct
16. 16.12 × 5 =
17. 17.Best estimate of 72 × 89? (a) 630 (b) 12600 (c) 63000 (d) 6300
18. 18.₹64.85 − ₹13.80 =
19. 19.Check with nines: 222 + 698 = 920. Correct or wrong? (a) wrong (b) correct
20. 20.550 ÷ 50 =
21. 21.85 + 69 =
22. 22.51 × 8 =
23. 23.389 − 27 =
24. 24.₹19.05 − ₹7.65 =
25. 25.41 + 58 =
26. 26.208 + 17 =
27. 27.55 + 55 + 19 + 20 =
28. 28.46 + 37 + 11 + 88 =
29. 29.40 × 8 =
30. 30.2 + 9 + 1 + 1 + 8 =
31. 31.200 + 47 =
32. 32.Check with nines: 869 + 436 = 1305. Correct or wrong? (a) wrong (b) correct
33. 33.18 × 4 =
34. 34.240 + 69 =
35. 35.70 + 27 =
36. 36.33 + 63 + 32 + 23 =
37. 37.66 + 51 + 81 + 63 =
38. 38.400 ÷ 5 =
39. 39.29 × 15 =
40. 40.Best estimate of 498 × 8? (a) 4000 (b) 400 (c) 40000 (d) 8000

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