Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 602 · 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. 1.68 × 50 =
2. 2.331 + 89 =
3. 3.Best estimate of 58 × 38? (a) 24000 (b) 4800 (c) 240 (d) 2400
4. 4.365 ÷ 5 =
5. 5.5 × 15 =
6. 6.5% of 850 =
7. 7.29 × 8 =
8. 8.1% of 470 =
9. 9.Check with nines: 788 + 895 = 1679. Correct or wrong? (a) wrong (b) correct
10. 10.3 + 3 + 8 + 7 + 5 =
11. 11.3 + 7 + 7 + 8 =
12. 12.15% of 90 =
13. 13.630 ÷ 5 =
14. 14.7 + 4 + 5 + 5 =
15. 15.Best estimate of 22 × 92? (a) 180 (b) 1800 (c) 3600 (d) 18000
16. 16.34 + 80 + 69 + 72 =
17. 17.5 + 6 + 8 + 2 =
18. 18.27 × 15 =
19. 19.112 × 4 =
20. 20.7 + 2 + 9 + 1 =
21. 21.32 × 15 =
22. 22.39² =
23. 23.50 + 63 + 64 + 18 =
24. 24.60 + 37 + 22 + 47 =
25. 25.323 + 17 =
26. 26.158 − 98 =
27. 27.325 ÷ 25 =
28. 28.Check with nines: 635 + 522 = 1151. Correct or wrong? (a) correct (b) wrong
29. 29.Check with nines: 75 × 17 = 1275. Correct or wrong? (a) correct (b) wrong
30. 30.Check with nines: 925 + 540 = 1458. Correct or wrong? (a) correct (b) wrong
31. 31.18 × 15 =
32. 32.Best estimate of 51 × 92? (a) 45000 (b) 9000 (c) 4500 (d) 450
33. 33.366 + 97 =
34. 34.482 − 69 =
35. 35.415 + 67 =
36. 36.37 × 15 =
37. 37.29² =
38. 38.₹88.45 − ₹44.25 =
39. 39.9 + 7 + 3 + 7 =
40. 40.Best estimate of 78 × 59? (a) 480 (b) 9600 (c) 48000 (d) 4800

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