Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 167 · 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. 1.56 × 50 =
2. 2.25% of 720 =
3. 3.Best estimate of 102 × 4? (a) 800 (b) 400 (c) 4000 (d) 40
4. 4.425 ÷ 5 =
5. 5.90 × 5 =
6. 6.43 + 67 + 12 + 18 =
7. 7.19 × 8 =
8. 8.10% of 400 =
9. 9.Best estimate of 398 × 5? (a) 20000 (b) 2000 (c) 4000 (d) 200
10. 10.95 − 89 =
11. 11.200 ÷ 50 =
12. 12.85 + 59 + 39 + 87 =
13. 13.Check with nines: 691 + 760 = 1451. Correct or wrong? (a) wrong (b) correct
14. 14.1650 ÷ 50 =
15. 15.164 + 28 =
16. 16.50% of 660 =
17. 17.89 + 28 + 33 + 17 =
18. 18.Check with nines: 93 × 52 = 4842. Correct or wrong? (a) correct (b) wrong
19. 19.67 × 8 =
20. 20.288 − 29 =
21. 21.19 × 15 =
22. 22.₹99.40 + ₹13.10 =
23. 23.425 ÷ 25 =
24. 24.91 + 28 =
25. 25.61 × 8 =
26. 26.7 + 2 + 8 + 8 =
27. 27.Best estimate of 599 × 8? (a) 480 (b) 9600 (c) 48000 (d) 4800
28. 28.1% of 610 =
29. 29.30 × 50 =
30. 30.450 ÷ 25 =
31. 31.32 + 53 + 37 + 81 =
32. 32.19² =
33. 33.15 × 15 =
34. 34.381 − 87 =
35. 35.50 × 8 =
36. 36.₹48.35 + ₹15.70 =
37. 37.22 × 5 =
38. 38.23 + 36 + 39 + 51 =
39. 39.Check with nines: 363 + 935 = 1298. Correct or wrong? (a) correct (b) wrong
40. 40.558 − 57 =

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