Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 117 · 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. 1.50% of 740 =
2. 2.17 + 33 + 68 + 80 =
3. 3.21 × 5 =
4. 4.73 + 55 + 66 + 16 =
5. 5.17 × 16 =
6. 6.Check with nines: 87 × 51 = 4436. Correct or wrong? (a) correct (b) wrong
7. 7.Best estimate of 902 × 4? (a) 7200 (b) 36000 (c) 3600 (d) 360
8. 8.Best estimate of 78 × 68? (a) 56000 (b) 560 (c) 5600 (d) 11200
9. 9.1% of 130 =
10. 10.438 + 27 =
11. 11.20 + 78 + 64 + 71 =
12. 12.60 × 15 =
13. 13.Check with nines: 230 + 659 = 882. Correct or wrong? (a) wrong (b) correct
14. 14.130 + 89 =
15. 15.Check with nines: 85 × 47 = 3997. Correct or wrong? (a) correct (b) wrong
16. 16.3 + 2 + 6 + 7 =
17. 17.₹91.55 + ₹12.55 =
18. 18.64 × 15 =
19. 19.25 + 67 + 15 + 27 =
20. 20.346 + 19 =
21. 21.58 + 17 =
22. 22.70 + 19 + 71 + 89 =
23. 23.6 + 4 + 9 + 4 =
24. 24.61² =
25. 25.Check with nines: 407 + 829 = 1233. Correct or wrong? (a) wrong (b) correct
26. 26.71 × 8 =
27. 27.625 ÷ 25 =
28. 28.30 × 15 =
29. 29.50% of 770 =
30. 30.45 + 74 + 62 + 13 =
31. 31.152 + 69 =
32. 32.108 + 38 =
33. 33.275 + 99 =
34. 34.5 + 6 + 8 + 2 =
35. 35.Check with nines: 209 + 785 = 994. Correct or wrong? (a) wrong (b) correct
36. 36.Best estimate of 898 × 9? (a) 810 (b) 81000 (c) 8100 (d) 16200
37. 37.6 + 5 + 5 + 1 =
38. 38.Best estimate of 98 × 4? (a) 800 (b) 40 (c) 4000 (d) 400
39. 39.Check with nines: 669 + 285 = 954. Correct or wrong? (a) correct (b) wrong
40. 40.20% of 110 =

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