Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 787 · 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. 1.139 × 4 =
2. 2.425 + 28 =
3. 3.5 + 4 + 3 + 6 =
4. 4.29 × 5 =
5. 5.81 × 50 =
6. 6.16 × 14 =
7. 7.63 × 50 =
8. 8.50% of 430 =
9. 9.2 + 2 + 8 + 9 =
10. 10.₹54.65 + ₹29.35 =
11. 11.46 + 88 =
12. 12.61² =
13. 13.₹38.15 + ₹41.15 =
14. 14.305 − 36 =
15. 15.40 × 4 =
16. 16.52 × 15 =
17. 17.23 × 5 =
18. 18.₹91.05 − ₹40.65 =
19. 19.561 − 17 =
20. 20.285 ÷ 5 =
21. 21.25% of 510 =
22. 22.Check with nines: 25 × 92 = 2300. Correct or wrong? (a) wrong (b) correct
23. 23.Check with nines: 84 × 66 = 5543. Correct or wrong? (a) correct (b) wrong
24. 24.Best estimate of 31 × 68? (a) 210 (b) 2100 (c) 4200 (d) 21000
25. 25.16 × 15 =
26. 26.59² =
27. 27.12 + 43 + 76 + 80 =
28. 28.50% of 800 =
29. 29.₹82.30 + ₹42.85 =
30. 30.314 + 57 =
31. 31.Best estimate of 803 × 6? (a) 9600 (b) 48000 (c) 4800 (d) 480
32. 32.6 + 9 + 8 + 2 =
33. 33.250 ÷ 25 =
34. 34.500 ÷ 50 =
35. 35.₹27.40 + ₹36.95 =
36. 36.61 × 4 =
37. 37.5 + 7 + 5 + 8 =
38. 38.32 + 32 + 78 + 11 =
39. 39.15 × 13 =
40. 40.43 × 15 =

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