Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 705 · 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. 1.346 − 16 =
2. 2.₹5.65 + ₹29.25 =
3. 3.356 + 39 =
4. 4.16 × 15 =
5. 5.193 − 97 =
6. 6.44 + 74 + 84 + 50 =
7. 7.800 ÷ 50 =
8. 8.157 × 4 =
9. 9.Check with nines: 703 + 759 = 1468. Correct or wrong? (a) wrong (b) correct
10. 10.Check with nines: 34 × 95 = 3230. Correct or wrong? (a) correct (b) wrong
11. 11.200 ÷ 50 =
12. 12.Best estimate of 698 × 4? (a) 280 (b) 28000 (c) 5600 (d) 2800
13. 13.21 + 16 + 22 + 32 =
14. 14.53 × 5 =
15. 15.77 + 88 + 61 + 73 =
16. 16.126 − 98 =
17. 17.36 + 83 + 70 + 66 =
18. 18.91² =
19. 19.40 × 8 =
20. 20.50% of 450 =
21. 21.Best estimate of 91 × 72? (a) 630 (b) 12600 (c) 6300 (d) 63000
22. 22.13 × 14 =
23. 23.5% of 230 =
24. 24.₹77.30 − ₹7.35 =
25. 25.275 ÷ 25 =
26. 26.89² =
27. 27.15 × 18 =
28. 28.539 − 26 =
29. 29.₹67.15 + ₹18.55 =
30. 30.12 × 11 =
31. 31.25 + 83 + 67 + 22 =
32. 32.10% of 120 =
33. 33.5% of 350 =
34. 34.Check with nines: 195 + 658 = 858. Correct or wrong? (a) correct (b) wrong
35. 35.328 + 37 =
36. 36.41² =
37. 37.331 − 38 =
38. 38.32 × 50 =
39. 39.387 − 87 =
40. 40.26 × 4 =

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