Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 776 · 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. 1.86 + 33 + 82 + 75 =
2. 2.61 × 15 =
3. 3.49 × 5 =
4. 4.66 + 68 + 71 + 34 =
5. 5.80 − 39 =
6. 6.50 + 85 + 16 + 70 =
7. 7.Best estimate of 91 × 28? (a) 5400 (b) 270 (c) 27000 (d) 2700
8. 8.24 × 15 =
9. 9.6 + 7 + 9 + 8 + 1 =
10. 10.35 × 50 =
11. 11.300 ÷ 25 =
12. 12.155 ÷ 5 =
13. 13.15 × 18 =
14. 14.3 + 9 + 7 + 3 =
15. 15.80 + 76 + 53 + 63 =
16. 16.25% of 110 =
17. 17.59² =
18. 18.15% of 770 =
19. 19.397 − 26 =
20. 20.Check with nines: 73 × 15 = 1095. Correct or wrong? (a) correct (b) wrong
21. 21.42 × 15 =
22. 22.16 × 14 =
23. 23.65 + 57 + 67 + 50 =
24. 24.18 × 15 =
25. 25.Check with nines: 189 + 650 = 846. Correct or wrong? (a) correct (b) wrong
26. 26.49² =
27. 27.20 + 82 + 27 + 39 =
28. 28.59² =
29. 29.250 ÷ 50 =
30. 30.Best estimate of 897 × 4? (a) 7200 (b) 3600 (c) 36000 (d) 360
31. 31.285 + 89 =
32. 32.Check with nines: 13 × 40 = 518. Correct or wrong? (a) correct (b) wrong
33. 33.1% of 280 =
34. 34.515 − 58 =
35. 35.19 × 15 =
36. 36.7 + 9 + 1 + 7 =
37. 37.₹72.30 − ₹45.35 =
38. 38.54 + 79 =
39. 39.8 + 2 + 9 + 6 =
40. 40.29 × 50 =

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