Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 270 · 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 + 9 + 4 + 6 + 1 =
2. 2.Check with nines: 29 × 91 = 2639. Correct or wrong? (a) wrong (b) correct
3. 3.12 × 13 =
4. 4.Check with nines: 30 × 19 = 570. Correct or wrong? (a) correct (b) wrong
5. 5.468 + 39 =
6. 6.5% of 810 =
7. 7.51 × 50 =
8. 8.₹33.25 + ₹2.75 =
9. 9.59² =
10. 10.7 + 3 + 1 + 3 + 1 =
11. 11.29² =
12. 12.237 − 76 =
13. 13.Best estimate of 18 × 41? (a) 80 (b) 1600 (c) 800 (d) 8000
14. 14.11 × 12 =
15. 15.Check with nines: 390 + 488 = 886. Correct or wrong? (a) wrong (b) correct
16. 16.Check with nines: 464 + 125 = 594. Correct or wrong? (a) wrong (b) correct
17. 17.130 − 99 =
18. 18.51² =
19. 19.435 ÷ 5 =
20. 20.437 + 89 =
21. 21.20 + 45 + 21 + 21 =
22. 22.15% of 310 =
23. 23.20% of 520 =
24. 24.397 + 37 =
25. 25.145 × 4 =
26. 26.₹10.30 + ₹17.50 =
27. 27.16 × 12 =
28. 28.8 + 3 + 6 + 4 + 2 =
29. 29.300 ÷ 50 =
30. 30.Check with nines: 191 + 353 = 544. Correct or wrong? (a) correct (b) wrong
31. 31.187 − 36 =
32. 32.₹40.45 − ₹12.75 =
33. 33.60 × 5 =
34. 34.₹43.70 + ₹30.25 =
35. 35.18 × 17 =
36. 36.63 × 50 =
37. 37.47 × 4 =
38. 38.57 × 8 =
39. 39.42 × 15 =
40. 40.6 + 6 + 3 + 4 + 4 =

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