Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 138 · 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. 1.8 × 15 =
2. 2.462 + 57 =
3. 3.₹87.95 + ₹45.75 =
4. 4.37 × 15 =
5. 5.50% of 700 =
6. 6.Best estimate of 803 × 3? (a) 240 (b) 4800 (c) 24000 (d) 2400
7. 7.5% of 670 =
8. 8.Check with nines: 21 × 62 = 1302. Correct or wrong? (a) wrong (b) correct
9. 9.59 + 62 + 37 + 36 =
10. 10.Best estimate of 22 × 91? (a) 18000 (b) 3600 (c) 1800 (d) 180
11. 11.18 + 74 + 15 + 81 =
12. 12.43 + 22 + 17 + 67 =
13. 13.33 × 5 =
14. 14.₹75.40 + ₹23.05 =
15. 15.450 ÷ 50 =
16. 16.20% of 420 =
17. 17.129 − 69 =
18. 18.17 × 14 =
19. 19.473 − 47 =
20. 20.20 × 5 =
21. 21.25 + 79 =
22. 22.90 + 89 =
23. 23.950 ÷ 25 =
24. 24.₹59.65 − ₹22.20 =
25. 25.206 − 86 =
26. 26.19 × 18 =
27. 27.Best estimate of 58 × 82? (a) 4800 (b) 9600 (c) 480 (d) 48000
28. 28.5 + 4 + 4 + 6 =
29. 29.12 × 13 =
30. 30.46 × 50 =
31. 31.1100 ÷ 50 =
32. 32.265 ÷ 5 =
33. 33.49² =
34. 34.₹53.20 + ₹5.75 =
35. 35.Check with nines: 92 × 79 = 7266. Correct or wrong? (a) wrong (b) correct
36. 36.3 + 9 + 8 + 2 =
37. 37.21 × 8 =
38. 38.8 + 3 + 9 + 7 =
39. 39.Check with nines: 629 + 173 = 802. Correct or wrong? (a) correct (b) wrong
40. 40.1350 ÷ 50 =

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