Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 797 · 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. 1.36 + 31 + 74 + 34 =
2. 2.₹29.90 − ₹12.40 =
3. 3.₹8.60 + ₹5.20 =
4. 4.Best estimate of 299 × 5? (a) 15000 (b) 150 (c) 3000 (d) 1500
5. 5.79² =
6. 6.15 × 13 =
7. 7.Best estimate of 32 × 82? (a) 24000 (b) 2400 (c) 240 (d) 4800
8. 8.69 × 8 =
9. 9.526 − 96 =
10. 10.15% of 230 =
11. 11.290 + 88 =
12. 12.₹35.30 + ₹39.20 =
13. 13.346 + 68 =
14. 14.575 − 16 =
15. 15.18 × 14 =
16. 16.Check with nines: 467 + 506 = 973. Correct or wrong? (a) wrong (b) correct
17. 17.12 × 15 =
18. 18.4 + 3 + 7 + 3 + 1 =
19. 19.15 × 19 =
20. 20.4 + 1 + 5 + 5 =
21. 21.36 + 31 + 29 + 40 =
22. 22.11 × 19 =
23. 23.32 × 15 =
24. 24.11 × 19 =
25. 25.19 × 11 =
26. 26.36 × 5 =
27. 27.222 − 49 =
28. 28.19 × 14 =
29. 29.198 + 57 =
30. 30.Check with nines: 362 + 780 = 1137. Correct or wrong? (a) correct (b) wrong
31. 31.32 × 4 =
32. 32.439 + 87 =
33. 33.451 + 28 =
34. 34.168 + 39 =
35. 35.Check with nines: 99 × 30 = 2970. Correct or wrong? (a) wrong (b) correct
36. 36.14 × 11 =
37. 37.89 × 5 =
38. 38.18 × 19 =
39. 39.11 × 13 =
40. 40.61 × 15 =

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