Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 617 · 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. 1.11 + 60 + 61 + 63 =
2. 2.5 + 5 + 1 + 2 + 3 =
3. 3.16 × 15 =
4. 4.1700 ÷ 50 =
5. 5.4 × 15 =
6. 6.Check with nines: 325 + 804 = 1129. Correct or wrong? (a) wrong (b) correct
7. 7.4 + 6 + 3 + 2 =
8. 8.35 + 68 + 86 + 77 =
9. 9.413 + 49 =
10. 10.35 × 15 =
11. 11.Check with nines: 49 × 66 = 3232. Correct or wrong? (a) wrong (b) correct
12. 12.43 × 15 =
13. 13.625 ÷ 25 =
14. 14.13 × 15 =
15. 15.Best estimate of 697 × 4? (a) 280 (b) 2800 (c) 28000 (d) 5600
16. 16.9 + 8 + 4 + 6 =
17. 17.55 × 4 =
18. 18.500 ÷ 50 =
19. 19.46 + 27 =
20. 20.Check with nines: 25 × 37 = 917. Correct or wrong? (a) correct (b) wrong
21. 21.13 × 12 =
22. 22.₹26.15 − ₹25.60 =
23. 23.21² =
24. 24.8 + 6 + 2 + 2 + 9 =
25. 25.Best estimate of 402 × 9? (a) 360 (b) 3600 (c) 7200 (d) 36000
26. 26.417 − 46 =
27. 27.4 + 8 + 6 + 2 =
28. 28.Best estimate of 599 × 5? (a) 300 (b) 3000 (c) 6000 (d) 30000
29. 29.Check with nines: 35 × 17 = 599. Correct or wrong? (a) wrong (b) correct
30. 30.400 ÷ 50 =
31. 31.5 × 15 =
32. 32.90 + 58 =
33. 33.136 + 28 =
34. 34.202 − 87 =
35. 35.131 × 4 =
36. 36.17 × 18 =
37. 37.59 × 50 =
38. 38.167 − 86 =
39. 39.₹50.80 + ₹44.10 =
40. 40.39² =

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