Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 68 · 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 902 × 6? (a) 10800 (b) 540 (c) 5400 (d) 54000
2. 2.₹38.80 − ₹29.40 =
3. 3.14 × 17 =
4. 4.168 + 49 =
5. 5.Check with nines: 14 × 38 = 532. Correct or wrong? (a) wrong (b) correct
6. 6.Best estimate of 51 × 41? (a) 2000 (b) 4000 (c) 20000 (d) 200
7. 7.10% of 360 =
8. 8.352 + 78 =
9. 9.17 × 19 =
10. 10.2 + 9 + 2 + 8 =
11. 11.491 − 39 =
12. 12.Check with nines: 323 + 494 = 812. Correct or wrong? (a) wrong (b) correct
13. 13.118 − 98 =
14. 14.Best estimate of 51 × 48? (a) 25000 (b) 250 (c) 2500 (d) 5000
15. 15.Best estimate of 303 × 4? (a) 12000 (b) 120 (c) 2400 (d) 1200
16. 16.20 + 32 + 29 + 88 =
17. 17.23 × 8 =
18. 18.322 + 88 =
19. 19.142 × 4 =
20. 20.82 × 5 =
21. 21.3 + 7 + 1 + 8 + 3 =
22. 22.60 × 15 =
23. 23.449 + 77 =
24. 24.5% of 140 =
25. 25.79² =
26. 26.64 − 37 =
27. 27.₹97.80 − ₹16.25 =
28. 28.390 − 76 =
29. 29.27 × 8 =
30. 30.₹27.70 + ₹30.70 =
31. 31.14 × 4 =
32. 32.16 × 12 =
33. 33.8 + 7 + 5 + 3 + 8 =
34. 34.349 + 49 =
35. 35.50 + 88 + 73 + 86 =
36. 36.295 ÷ 5 =
37. 37.8 × 15 =
38. 38.360 + 69 =
39. 39.283 − 77 =
40. 40.15% of 740 =

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