Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 703 · 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.Check with nines: 308 + 793 = 1101. Correct or wrong? (a) correct (b) wrong
2. 2.Check with nines: 24 × 31 = 744. Correct or wrong? (a) correct (b) wrong
3. 3.40 × 5 =
4. 4.79² =
5. 5.7 + 8 + 9 + 3 =
6. 6.Best estimate of 91 × 51? (a) 45000 (b) 4500 (c) 450 (d) 9000
7. 7.71² =
8. 8.70 + 13 + 18 + 43 =
9. 9.45 × 5 =
10. 10.Check with nines: 816 + 895 = 1716. Correct or wrong? (a) wrong (b) correct
11. 11.₹37.10 − ₹11.25 =
12. 12.₹8.25 + ₹12.65 =
13. 13.19 × 18 =
14. 14.75 + 74 + 50 + 87 =
15. 15.84 × 5 =
16. 16.152 − 37 =
17. 17.Check with nines: 82 × 91 = 7462. Correct or wrong? (a) correct (b) wrong
18. 18.92 × 5 =
19. 19.13 × 19 =
20. 20.11 × 11 =
21. 21.935 ÷ 5 =
22. 22.59² =
23. 23.282 + 89 =
24. 24.6 + 3 + 1 + 7 =
25. 25.500 ÷ 5 =
26. 26.1550 ÷ 50 =
27. 27.5% of 20 =
28. 28.1 + 5 + 9 + 6 =
29. 29.318 − 28 =
30. 30.39 × 15 =
31. 31.83 × 50 =
32. 32.Check with nines: 816 + 344 = 1162. Correct or wrong? (a) wrong (b) correct
33. 33.63 × 15 =
34. 34.Best estimate of 38 × 92? (a) 7200 (b) 36000 (c) 3600 (d) 360
35. 35.156 + 18 =
36. 36.Check with nines: 651 + 449 = 1100. Correct or wrong? (a) correct (b) wrong
37. 37.79² =
38. 38.65 × 8 =
39. 39.50 × 4 =
40. 40.Check with nines: 233 + 304 = 537. Correct or wrong? (a) correct (b) wrong

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