Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 501 · 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. 1.3 + 6 + 1 + 3 + 7 =
2. 2.Check with nines: 34 × 81 = 2749. Correct or wrong? (a) correct (b) wrong
3. 3.31² =
4. 4.81 + 80 + 42 + 76 =
5. 5.62 × 15 =
6. 6.18 × 15 =
7. 7.20% of 360 =
8. 8.373 + 68 =
9. 9.300 ÷ 25 =
10. 10.2 + 5 + 1 + 8 + 7 =
11. 11.Best estimate of 59 × 28? (a) 3600 (b) 1800 (c) 18000 (d) 180
12. 12.199 + 28 =
13. 13.366 − 68 =
14. 14.79 × 50 =
15. 15.371 + 27 =
16. 16.15% of 400 =
17. 17.81² =
18. 18.Check with nines: 49 × 27 = 1316. Correct or wrong? (a) correct (b) wrong
19. 19.97 − 27 =
20. 20.420 ÷ 5 =
21. 21.69 + 81 + 78 + 28 =
22. 22.62 × 8 =
23. 23.6 + 2 + 9 + 4 + 8 =
24. 24.2 + 1 + 4 + 7 + 8 =
25. 25.22 × 15 =
26. 26.89 + 28 + 64 + 52 =
27. 27.₹48.45 − ₹16.60 =
28. 28.2 + 8 + 7 + 5 + 2 =
29. 29.14 + 42 + 57 + 45 =
30. 30.14 × 12 =
31. 31.Check with nines: 83 × 46 = 3818. Correct or wrong? (a) correct (b) wrong
32. 32.₹61.05 − ₹26.35 =
33. 33.7 × 15 =
34. 34.55 × 5 =
35. 35.41 × 15 =
36. 36.52 × 5 =
37. 37.50% of 50 =
38. 38.419 − 17 =
39. 39.Check with nines: 312 + 897 = 1209. Correct or wrong? (a) correct (b) wrong
40. 40.Check with nines: 554 + 812 = 1366. Correct or wrong? (a) wrong (b) correct

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