Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 174 · 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. 1.5% of 890 =
2. 2.11 × 19 =
3. 3.8 + 3 + 2 + 8 =
4. 4.25% of 160 =
5. 5.265 + 49 =
6. 6.69² =
7. 7.Check with nines: 294 + 178 = 471. Correct or wrong? (a) wrong (b) correct
8. 8.13 × 19 =
9. 9.25 + 85 + 20 + 13 =
10. 10.61 × 15 =
11. 11.8 + 4 + 2 + 8 + 5 =
12. 12.236 − 16 =
13. 13.50% of 790 =
14. 14.₹22.95 + ₹41.30 =
15. 15.84 × 5 =
16. 16.83 × 4 =
17. 17.20% of 700 =
18. 18.492 − 58 =
19. 19.13 × 13 =
20. 20.46 × 5 =
21. 21.₹46.55 − ₹8.05 =
22. 22.22 × 50 =
23. 23.377 + 29 =
24. 24.Best estimate of 59 × 61? (a) 3600 (b) 360 (c) 36000 (d) 7200
25. 25.Check with nines: 839 + 540 = 1379. Correct or wrong? (a) correct (b) wrong
26. 26.20 + 53 + 18 + 31 =
27. 27.38 + 61 + 55 + 35 =
28. 28.219 − 77 =
29. 29.Best estimate of 697 × 3? (a) 210 (b) 21000 (c) 2100 (d) 4200
30. 30.32 + 20 + 76 + 72 =
31. 31.₹37.85 + ₹2.55 =
32. 32.70 × 5 =
33. 33.Best estimate of 497 × 4? (a) 2000 (b) 4000 (c) 200 (d) 20000
34. 34.152 + 48 =
35. 35.448 + 27 =
36. 36.Check with nines: 932 + 199 = 1131. Correct or wrong? (a) correct (b) wrong
37. 37.40 + 22 + 12 + 20 =
38. 38.17 × 15 =
39. 39.12 × 13 =
40. 40.95 × 5 =

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