Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 273 · 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. 1.26 × 50 =
2. 2.396 − 69 =
3. 3.28 × 5 =
4. 4.14 × 11 =
5. 5.46 × 15 =
6. 6.1% of 30 =
7. 7.105 − 86 =
8. 8.4 + 8 + 6 + 2 =
9. 9.10% of 250 =
10. 10.Check with nines: 60 × 24 = 1445. Correct or wrong? (a) correct (b) wrong
11. 11.88 + 79 =
12. 12.Best estimate of 41 × 92? (a) 7200 (b) 360 (c) 36000 (d) 3600
13. 13.29² =
14. 14.10% of 170 =
15. 15.152 − 66 =
16. 16.7 + 1 + 2 + 3 + 8 =
17. 17.₹71.85 − ₹4.60 =
18. 18.Check with nines: 73 × 99 = 7224. Correct or wrong? (a) correct (b) wrong
19. 19.675 ÷ 25 =
20. 20.450 + 37 =
21. 21.26 + 21 + 30 + 36 =
22. 22.₹58.05 − ₹30.20 =
23. 23.Best estimate of 498 × 8? (a) 400 (b) 4000 (c) 8000 (d) 40000
24. 24.3 + 9 + 1 + 1 =
25. 25.1850 ÷ 50 =
26. 26.190 ÷ 5 =
27. 27.143 − 26 =
28. 28.90 × 5 =
29. 29.2 + 5 + 2 + 3 + 8 =
30. 30.51 × 8 =
31. 31.Check with nines: 167 + 205 = 377. Correct or wrong? (a) correct (b) wrong
32. 32.Check with nines: 184 + 829 = 1013. Correct or wrong? (a) wrong (b) correct
33. 33.4 + 6 + 7 + 2 =
34. 34.357 + 89 =
35. 35.900 ÷ 25 =
36. 36.825 ÷ 25 =
37. 37.1000 ÷ 25 =
38. 38.259 + 37 =
39. 39.Best estimate of 61 × 62? (a) 360 (b) 3600 (c) 36000 (d) 7200
40. 40.443 − 39 =

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