Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 383 · 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: 737 + 441 = 1177. Correct or wrong? (a) wrong (b) correct
2. 2.7 + 5 + 3 + 6 + 9 =
3. 3.4 + 1 + 9 + 2 + 3 =
4. 4.25% of 60 =
5. 5.450 ÷ 50 =
6. 6.Check with nines: 20 × 34 = 680. Correct or wrong? (a) correct (b) wrong
7. 7.14 × 15 =
8. 8.47 × 8 =
9. 9.Check with nines: 190 + 562 = 744. Correct or wrong? (a) wrong (b) correct
10. 10.145 ÷ 5 =
11. 11.30 × 5 =
12. 12.Check with nines: 47 × 46 = 2164. Correct or wrong? (a) wrong (b) correct
13. 13.Check with nines: 34 × 65 = 2210. Correct or wrong? (a) wrong (b) correct
14. 14.Check with nines: 273 + 848 = 1121. Correct or wrong? (a) wrong (b) correct
15. 15.1% of 470 =
16. 16.15% of 150 =
17. 17.16 × 19 =
18. 18.98 − 47 =
19. 19.9 + 7 + 6 + 2 + 1 =
20. 20.5 + 3 + 5 + 2 =
21. 21.20% of 160 =
22. 22.₹71.25 − ₹41.25 =
23. 23.5 + 8 + 7 + 2 =
24. 24.71 × 8 =
25. 25.69² =
26. 26.37 × 5 =
27. 27.33 × 5 =
28. 28.83 + 12 + 44 + 48 =
29. 29.36 × 15 =
30. 30.Best estimate of 29 × 38? (a) 1200 (b) 120 (c) 12000 (d) 2400
31. 31.1% of 40 =
32. 32.9 + 8 + 1 + 2 =
33. 33.589 − 46 =
34. 34.65 + 65 + 44 + 44 =
35. 35.Best estimate of 92 × 42? (a) 360 (b) 36000 (c) 3600 (d) 7200
36. 36.498 + 57 =
37. 37.68 + 16 + 78 + 37 =
38. 38.8 + 3 + 8 + 2 + 2 =
39. 39.13 × 19 =
40. 40.20% of 280 =

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