Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 563 · 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. 1.130 + 57 =
2. 2.87 + 27 + 29 + 18 =
3. 3.Best estimate of 92 × 88? (a) 81000 (b) 810 (c) 16200 (d) 8100
4. 4.Check with nines: 47 × 21 = 987. Correct or wrong? (a) wrong (b) correct
5. 5.59 × 8 =
6. 6.62 × 15 =
7. 7.91² =
8. 8.7 + 9 + 6 + 3 =
9. 9.138 + 67 =
10. 10.1150 ÷ 50 =
11. 11.12 × 15 =
12. 12.845 ÷ 5 =
13. 13.₹87.30 − ₹35.25 =
14. 14.69 − 28 =
15. 15.463 − 59 =
16. 16.₹46.10 − ₹33.10 =
17. 17.417 + 69 =
18. 18.2 + 2 + 8 + 7 =
19. 19.468 + 97 =
20. 20.15 × 14 =
21. 21.19 × 19 =
22. 22.11 × 12 =
23. 23.Best estimate of 82 × 71? (a) 11200 (b) 560 (c) 5600 (d) 56000
24. 24.390 ÷ 5 =
25. 25.23 × 15 =
26. 26.10% of 310 =
27. 27.137 + 68 =
28. 28.38 × 15 =
29. 29.Best estimate of 68 × 69? (a) 9800 (b) 490 (c) 4900 (d) 49000
30. 30.285 + 49 =
31. 31.₹13.25 − ₹13.15 =
32. 32.89 − 17 =
33. 33.369 − 47 =
34. 34.6 + 7 + 2 + 4 =
35. 35.Check with nines: 900 + 725 = 1626. Correct or wrong? (a) wrong (b) correct
36. 36.444 + 39 =
37. 37.5% of 290 =
38. 38.33 × 5 =
39. 39.9 + 6 + 1 + 4 =
40. 40.24 + 45 + 45 + 83 =

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