Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 487 · 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. 1.400 ÷ 5 =
2. 2.Check with nines: 54 × 93 = 5022. Correct or wrong? (a) wrong (b) correct
3. 3.₹75.10 − ₹30.15 =
4. 4.21 × 8 =
5. 5.37 × 5 =
6. 6.Check with nines: 40 × 69 = 2760. Correct or wrong? (a) correct (b) wrong
7. 7.300 ÷ 25 =
8. 8.₹46.35 + ₹18.85 =
9. 9.94 × 5 =
10. 10.19² =
11. 11.292 − 36 =
12. 12.190 + 17 =
13. 13.Check with nines: 972 + 199 = 1171. Correct or wrong? (a) wrong (b) correct
14. 14.32 × 4 =
15. 15.160 + 77 =
16. 16.Check with nines: 349 + 214 = 570. Correct or wrong? (a) wrong (b) correct
17. 17.211 + 89 =
18. 18.53 × 15 =
19. 19.61² =
20. 20.7 × 15 =
21. 21.₹84.25 − ₹30.30 =
22. 22.Best estimate of 502 × 3? (a) 150 (b) 1500 (c) 3000 (d) 15000
23. 23.270 − 16 =
24. 24.85 × 5 =
25. 25.600 ÷ 50 =
26. 26.38 × 4 =
27. 27.17 × 13 =
28. 28.1% of 40 =
29. 29.1275 ÷ 25 =
30. 30.25% of 230 =
31. 31.69² =
32. 32.₹56.75 − ₹47.10 =
33. 33.₹77.50 − ₹19.10 =
34. 34.₹29.70 + ₹39.85 =
35. 35.Check with nines: 474 + 710 = 1180. Correct or wrong? (a) wrong (b) correct
36. 36.Best estimate of 39 × 32? (a) 1200 (b) 120 (c) 2400 (d) 12000
37. 37.1% of 220 =
38. 38.77 + 63 + 18 + 50 =
39. 39.54 + 36 + 11 + 63 =
40. 40.94 − 68 =

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