Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 624 · 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. 1.6 × 15 =
2. 2.5% of 750 =
3. 3.3 + 5 + 1 + 5 =
4. 4.18 × 11 =
5. 5.44 × 15 =
6. 6.₹70.60 − ₹46.75 =
7. 7.15 × 14 =
8. 8.16 × 11 =
9. 9.1 + 6 + 9 + 8 =
10. 10.4 + 6 + 7 + 9 + 6 =
11. 11.31² =
12. 12.73 × 50 =
13. 13.40 × 15 =
14. 14.50% of 880 =
15. 15.8 + 2 + 2 + 2 + 7 =
16. 16.71 × 50 =
17. 17.Best estimate of 98 × 6? (a) 6000 (b) 60 (c) 1200 (d) 600
18. 18.Best estimate of 203 × 9? (a) 180 (b) 3600 (c) 1800 (d) 18000
19. 19.Check with nines: 28 × 70 = 1958. Correct or wrong? (a) correct (b) wrong
20. 20.₹7.25 + ₹5.80 =
21. 21.100 ÷ 25 =
22. 22.30 × 15 =
23. 23.66 + 30 + 52 + 85 =
24. 24.203 + 18 =
25. 25.379 − 67 =
26. 26.Best estimate of 62 × 62? (a) 3600 (b) 36000 (c) 7200 (d) 360
27. 27.Best estimate of 403 × 3? (a) 12000 (b) 120 (c) 2400 (d) 1200
28. 28.Check with nines: 684 + 298 = 982. Correct or wrong? (a) correct (b) wrong
29. 29.5 + 5 + 1 + 2 =
30. 30.15 × 15 =
31. 31.Best estimate of 38 × 52? (a) 4000 (b) 20000 (c) 200 (d) 2000
32. 32.Best estimate of 298 × 8? (a) 240 (b) 24000 (c) 4800 (d) 2400
33. 33.Check with nines: 16 × 34 = 544. Correct or wrong? (a) correct (b) wrong
34. 34.63 + 84 + 33 + 73 =
35. 35.83 − 27 =
36. 36.131 × 4 =
37. 37.Best estimate of 92 × 41? (a) 7200 (b) 3600 (c) 36000 (d) 360
38. 38.71 × 5 =
39. 39.16 × 19 =
40. 40.21 × 4 =

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