Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 486 · 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.Best estimate of 59 × 49? (a) 300 (b) 3000 (c) 6000 (d) 30000
2. 2.14 × 4 =
3. 3.375 ÷ 25 =
4. 4.260 ÷ 5 =
5. 5.510 ÷ 5 =
6. 6.437 + 88 =
7. 7.₹61.70 − ₹9.25 =
8. 8.32 × 50 =
9. 9.Best estimate of 48 × 41? (a) 200 (b) 20000 (c) 4000 (d) 2000
10. 10.1500 ÷ 50 =
11. 11.50% of 760 =
12. 12.₹23.75 − ₹7.80 =
13. 13.47 × 50 =
14. 14.51² =
15. 15.Check with nines: 448 + 471 = 919. Correct or wrong? (a) correct (b) wrong
16. 16.310 + 38 =
17. 17.Check with nines: 596 + 163 = 759. Correct or wrong? (a) wrong (b) correct
18. 18.4 + 6 + 4 + 1 + 6 =
19. 19.Best estimate of 702 × 6? (a) 420 (b) 42000 (c) 8400 (d) 4200
20. 20.63 + 88 =
21. 21.47 + 56 + 84 + 25 =
22. 22.179 + 88 =
23. 23.86 + 28 =
24. 24.64 × 15 =
25. 25.39 + 36 + 18 + 29 =
26. 26.15 × 13 =
27. 27.₹58.40 + ₹43.45 =
28. 28.6 + 4 + 1 + 9 =
29. 29.19 × 17 =
30. 30.Check with nines: 236 + 203 = 441. Correct or wrong? (a) wrong (b) correct
31. 31.12 + 40 + 26 + 48 =
32. 32.515 − 16 =
33. 33.28 × 50 =
34. 34.285 ÷ 5 =
35. 35.55 × 4 =
36. 36.₹63.40 + ₹35.45 =
37. 37.₹35.95 + ₹9.15 =
38. 38.10% of 70 =
39. 39.79 − 37 =
40. 40.18 × 19 =

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