Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 410 · 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: 77 × 61 = 4699. Correct or wrong? (a) wrong (b) correct
2. 2.35 × 15 =
3. 3.17 × 17 =
4. 4.9 + 2 + 8 + 8 =
5. 5.Check with nines: 122 + 983 = 1105. Correct or wrong? (a) wrong (b) correct
6. 6.10 × 15 =
7. 7.9 + 1 + 7 + 5 =
8. 8.₹36.75 − ₹6.85 =
9. 9.29² =
10. 10.9 + 8 + 5 + 9 + 2 =
11. 11.₹36.50 − ₹30.25 =
12. 12.233 + 39 =
13. 13.3 + 7 + 5 + 3 =
14. 14.89² =
15. 15.15% of 200 =
16. 16.Check with nines: 73 × 66 = 4817. Correct or wrong? (a) correct (b) wrong
17. 17.137 − 19 =
18. 18.₹7.65 − ₹4.95 =
19. 19.417 + 67 =
20. 20.₹99.50 + ₹27.05 =
21. 21.900 ÷ 25 =
22. 22.352 + 27 =
23. 23.₹48.35 − ₹20.80 =
24. 24.76 − 27 =
25. 25.282 − 16 =
26. 26.39² =
27. 27.47 × 4 =
28. 28.82 × 5 =
29. 29.245 − 97 =
30. 30.Check with nines: 429 + 898 = 1335. Correct or wrong? (a) correct (b) wrong
31. 31.15 × 14 =
32. 32.53 × 15 =
33. 33.Best estimate of 198 × 5? (a) 1000 (b) 10000 (c) 2000 (d) 100
34. 34.₹25.50 + ₹37.30 =
35. 35.980 ÷ 5 =
36. 36.400 ÷ 25 =
37. 37.10% of 260 =
38. 38.17 × 13 =
39. 39.73 + 64 + 77 + 77 =
40. 40.69 × 50 =

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