Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 549 · 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: 363 + 797 = 1153. Correct or wrong? (a) wrong (b) correct
2. 2.Best estimate of 89 × 32? (a) 27000 (b) 270 (c) 2700 (d) 5400
3. 3.26 × 8 =
4. 4.Best estimate of 601 × 6? (a) 36000 (b) 3600 (c) 360 (d) 7200
5. 5.47 × 8 =
6. 6.170 − 38 =
7. 7.11 + 73 + 29 + 52 =
8. 8.20 × 50 =
9. 9.₹48.40 − ₹14.90 =
10. 10.12 × 19 =
11. 11.42 + 21 + 57 + 81 =
12. 12.254 − 26 =
13. 13.79 × 4 =
14. 14.Check with nines: 68 × 98 = 6656. Correct or wrong? (a) wrong (b) correct
15. 15.74 × 50 =
16. 16.59² =
17. 17.9 + 7 + 6 + 4 + 7 =
18. 18.₹59.95 + ₹7.05 =
19. 19.49 × 5 =
20. 20.32 × 15 =
21. 21.71² =
22. 22.11 + 59 + 33 + 84 =
23. 23.3 + 8 + 3 + 7 =
24. 24.1450 ÷ 50 =
25. 25.51² =
26. 26.87 − 47 =
27. 27.110 + 37 =
28. 28.82 + 88 =
29. 29.₹32.70 − ₹14.90 =
30. 30.357 − 49 =
31. 31.600 ÷ 25 =
32. 32.₹82.30 − ₹18.75 =
33. 33.19 × 11 =
34. 34.Check with nines: 46 × 69 = 3174. Correct or wrong? (a) wrong (b) correct
35. 35.54 × 4 =
36. 36.5% of 40 =
37. 37.89 + 54 + 28 + 56 =
38. 38.35 × 4 =
39. 39.7 + 8 + 4 + 1 + 6 =
40. 40.9 + 5 + 3 + 7 =

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