Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 987 · 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. 1.141 × 4 =
2. 2.4 + 9 + 3 + 5 + 5 =
3. 3.140 × 4 =
4. 4.333 + 29 =
5. 5.Best estimate of 302 × 8? (a) 4800 (b) 24000 (c) 2400 (d) 240
6. 6.86 × 50 =
7. 7.79² =
8. 8.15% of 160 =
9. 9.1425 ÷ 25 =
10. 10.700 ÷ 50 =
11. 11.157 + 77 =
12. 12.Best estimate of 69 × 68? (a) 9800 (b) 49000 (c) 490 (d) 4900
13. 13.2 + 3 + 4 + 6 + 9 =
14. 14.Check with nines: 84 × 79 = 6636. Correct or wrong? (a) correct (b) wrong
15. 15.800 ÷ 50 =
16. 16.9 + 6 + 8 + 4 =
17. 17.Best estimate of 72 × 68? (a) 9800 (b) 49000 (c) 490 (d) 4900
18. 18.8 + 5 + 2 + 6 =
19. 19.597 − 17 =
20. 20.16 × 18 =
21. 21.16 × 15 =
22. 22.₹35.55 − ₹24.80 =
23. 23.450 ÷ 50 =
24. 24.12 × 11 =
25. 25.Check with nines: 27 × 78 = 2106. Correct or wrong? (a) wrong (b) correct
26. 26.14 × 11 =
27. 27.39² =
28. 28.₹23.95 + ₹15.50 =
29. 29.725 ÷ 5 =
30. 30.65 × 8 =
31. 31.₹58.50 + ₹10.60 =
32. 32.41 × 50 =
33. 33.Check with nines: 24 × 32 = 768. Correct or wrong? (a) correct (b) wrong
34. 34.4 × 15 =
35. 35.15 × 16 =
36. 36.14 × 12 =
37. 37.10% of 50 =
38. 38.Check with nines: 41 × 89 = 3653. Correct or wrong? (a) correct (b) wrong
39. 39.₹31.70 + ₹31.80 =
40. 40.71² =

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