Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 957 · 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. 1.29² =
2. 2.Check with nines: 39 × 65 = 2534. Correct or wrong? (a) wrong (b) correct
3. 3.Best estimate of 72 × 22? (a) 1400 (b) 14000 (c) 2800 (d) 140
4. 4.6 + 7 + 1 + 3 + 6 =
5. 5.42 × 5 =
6. 6.7 + 9 + 5 + 1 =
7. 7.155 − 58 =
8. 8.66 × 5 =
9. 9.695 ÷ 5 =
10. 10.18 × 5 =
11. 11.800 ÷ 50 =
12. 12.Check with nines: 94 × 28 = 2629. Correct or wrong? (a) wrong (b) correct
13. 13.3 + 7 + 7 + 4 =
14. 14.Check with nines: 68 × 17 = 1156. Correct or wrong? (a) wrong (b) correct
15. 15.47 × 5 =
16. 16.10% of 720 =
17. 17.433 − 88 =
18. 18.Best estimate of 29 × 52? (a) 15000 (b) 150 (c) 1500 (d) 3000
19. 19.211 + 17 =
20. 20.104 + 87 =
21. 21.21 × 5 =
22. 22.625 ÷ 5 =
23. 23.68 + 30 + 32 + 13 =
24. 24.68 × 4 =
25. 25.340 ÷ 5 =
26. 26.142 − 99 =
27. 27.19² =
28. 28.₹82.25 + ₹45.90 =
29. 29.89² =
30. 30.312 − 86 =
31. 31.525 ÷ 5 =
32. 32.329 + 37 =
33. 33.670 ÷ 5 =
34. 34.Check with nines: 565 + 802 = 1367. Correct or wrong? (a) correct (b) wrong
35. 35.Check with nines: 726 + 220 = 946. Correct or wrong? (a) wrong (b) correct
36. 36.407 − 26 =
37. 37.276 − 19 =
38. 38.15 × 11 =
39. 39.Best estimate of 89 × 68? (a) 63000 (b) 6300 (c) 12600 (d) 630
40. 40.₹32.45 + ₹14.85 =

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