Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 628 · 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. 1.17 × 15 =
2. 2.₹59.20 − ₹43.25 =
3. 3.Best estimate of 897 × 8? (a) 72000 (b) 720 (c) 14400 (d) 7200
4. 4.355 ÷ 5 =
5. 5.16 × 11 =
6. 6.302 − 38 =
7. 7.20% of 70 =
8. 8.Check with nines: 127 + 246 = 373. Correct or wrong? (a) wrong (b) correct
9. 9.18 × 15 =
10. 10.39 × 4 =
11. 11.₹37.20 − ₹15.10 =
12. 12.33 + 23 + 56 + 17 =
13. 13.Best estimate of 799 × 9? (a) 72000 (b) 720 (c) 14400 (d) 7200
14. 14.1% of 310 =
15. 15.Best estimate of 102 × 3? (a) 3000 (b) 600 (c) 300 (d) 30
16. 16.40 × 15 =
17. 17.57 × 15 =
18. 18.25 + 19 + 52 + 80 =
19. 19.46 × 15 =
20. 20.76 × 50 =
21. 21.₹8.30 − ₹7.15 =
22. 22.61² =
23. 23.Best estimate of 303 × 7? (a) 21000 (b) 210 (c) 4200 (d) 2100
24. 24.Check with nines: 486 + 983 = 1469. Correct or wrong? (a) correct (b) wrong
25. 25.19² =
26. 26.17 × 5 =
27. 27.₹69.10 + ₹7.05 =
28. 28.19 × 8 =
29. 29.85 + 63 + 17 + 13 =
30. 30.₹10.75 + ₹17.85 =
31. 31.14 × 15 =
32. 32.565 − 79 =
33. 33.108 + 77 =
34. 34.₹33.85 − ₹15.65 =
35. 35.71² =
36. 36.50% of 200 =
37. 37.18 × 15 =
38. 38.569 − 17 =
39. 39.Check with nines: 353 + 260 = 615. Correct or wrong? (a) correct (b) wrong
40. 40.4 + 7 + 5 + 5 =

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