Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 695 · 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.Check with nines: 968 + 476 = 1444. Correct or wrong? (a) correct (b) wrong
2. 2.174 − 16 =
3. 3.47 × 50 =
4. 4.156 × 4 =
5. 5.67 + 51 + 24 + 87 =
6. 6.15 × 4 =
7. 7.Check with nines: 46 × 84 = 3863. Correct or wrong? (a) correct (b) wrong
8. 8.Best estimate of 101 × 4? (a) 40 (b) 4000 (c) 800 (d) 400
9. 9.51² =
10. 10.34 + 69 + 86 + 22 =
11. 11.86 × 4 =
12. 12.2 + 6 + 4 + 7 =
13. 13.29² =
14. 14.306 − 69 =
15. 15.491 − 47 =
16. 16.5 + 1 + 4 + 1 + 9 =
17. 17.5 + 6 + 5 + 5 + 7 =
18. 18.53 × 50 =
19. 19.88 + 21 + 69 + 87 =
20. 20.20% of 850 =
21. 21.₹23.80 + ₹4.20 =
22. 22.312 − 99 =
23. 23.57 + 87 + 33 + 18 =
24. 24.164 + 99 =
25. 25.79² =
26. 26.74 + 58 + 11 + 53 =
27. 27.3 + 9 + 4 + 1 =
28. 28.Best estimate of 61 × 29? (a) 180 (b) 1800 (c) 18000 (d) 3600
29. 29.16 × 18 =
30. 30.63 × 50 =
31. 31.17 × 15 =
32. 32.1% of 400 =
33. 33.19² =
34. 34.Check with nines: 518 + 756 = 1267. Correct or wrong? (a) correct (b) wrong
35. 35.₹34.85 + ₹4.85 =
36. 36.134 + 48 =
37. 37.Check with nines: 68 × 28 = 1903. Correct or wrong? (a) wrong (b) correct
38. 38.₹91.90 + ₹17.85 =
39. 39.Best estimate of 48 × 61? (a) 300 (b) 3000 (c) 6000 (d) 30000
40. 40.Best estimate of 98 × 7? (a) 1400 (b) 700 (c) 70 (d) 7000

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