Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 215 · 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.₹82.95 + ₹20.50 =
2. 2.69² =
3. 3.14 × 50 =
4. 4.₹9.90 + ₹38.95 =
5. 5.89 × 5 =
6. 6.4 + 9 + 9 + 7 + 6 =
7. 7.32 + 23 + 89 + 88 =
8. 8.39² =
9. 9.31 × 5 =
10. 10.145 × 4 =
11. 11.460 − 46 =
12. 12.Check with nines: 707 + 427 = 1134. Correct or wrong? (a) correct (b) wrong
13. 13.50% of 120 =
14. 14.Best estimate of 18 × 89? (a) 18000 (b) 180 (c) 1800 (d) 3600
15. 15.₹16.05 + ₹5.85 =
16. 16.25% of 110 =
17. 17.5% of 640 =
18. 18.18 × 15 =
19. 19.399 + 78 =
20. 20.Check with nines: 68 × 39 = 2652. Correct or wrong? (a) correct (b) wrong
21. 21.1400 ÷ 25 =
22. 22.₹35.85 − ₹31.50 =
23. 23.556 − 67 =
24. 24.3 + 7 + 3 + 4 =
25. 25.Best estimate of 82 × 29? (a) 24000 (b) 4800 (c) 2400 (d) 240
26. 26.50% of 40 =
27. 27.₹11.80 − ₹6.75 =
28. 28.99 × 4 =
29. 29.12 × 13 =
30. 30.407 + 47 =
31. 31.416 + 89 =
32. 32.17 × 13 =
33. 33.Best estimate of 48 × 78? (a) 40000 (b) 8000 (c) 4000 (d) 400
34. 34.80 × 5 =
35. 35.1% of 430 =
36. 36.Best estimate of 71 × 88? (a) 6300 (b) 63000 (c) 12600 (d) 630
37. 37.₹30.90 − ₹9.60 =
38. 38.31² =
39. 39.47 × 4 =
40. 40.Check with nines: 94 × 85 = 7990. Correct or wrong? (a) wrong (b) correct

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