Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 183 · 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 × 8 =
2. 2.374 + 69 =
3. 3.18 + 76 + 85 + 69 =
4. 4.Check with nines: 71 × 14 = 994. Correct or wrong? (a) correct (b) wrong
5. 5.Check with nines: 920 + 642 = 1562. Correct or wrong? (a) correct (b) wrong
6. 6.Best estimate of 91 × 19? (a) 1800 (b) 18000 (c) 180 (d) 3600
7. 7.21 + 19 + 47 + 28 =
8. 8.4 + 6 + 3 + 6 =
9. 9.1% of 450 =
10. 10.50% of 840 =
11. 11.452 + 17 =
12. 12.2 + 6 + 9 + 6 + 4 =
13. 13.9 + 1 + 1 + 2 =
14. 14.127 × 4 =
15. 15.3 + 1 + 5 + 6 + 7 =
16. 16.81² =
17. 17.9 + 3 + 1 + 4 + 3 =
18. 18.16 × 50 =
19. 19.84 + 34 + 41 + 15 =
20. 20.490 + 39 =
21. 21.72 × 50 =
22. 22.29 × 8 =
23. 23.83 × 5 =
24. 24.₹86.30 + ₹30.45 =
25. 25.251 + 27 =
26. 26.34 + 51 + 41 + 69 =
27. 27.153 × 4 =
28. 28.Check with nines: 49 × 43 = 2107. Correct or wrong? (a) correct (b) wrong
29. 29.135 ÷ 5 =
30. 30.1450 ÷ 50 =
31. 31.Best estimate of 38 × 49? (a) 4000 (b) 20000 (c) 2000 (d) 200
32. 32.46 × 50 =
33. 33.25% of 50 =
34. 34.230 + 48 =
35. 35.15% of 250 =
36. 36.15% of 220 =
37. 37.88 × 4 =
38. 38.42 + 69 + 49 + 71 =
39. 39.58 + 19 =
40. 40.700 ÷ 50 =

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