Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 677 · 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.Best estimate of 797 × 5? (a) 8000 (b) 40000 (c) 4000 (d) 400
2. 2.Check with nines: 741 + 242 = 982. Correct or wrong? (a) wrong (b) correct
3. 3.1 + 2 + 2 + 9 =
4. 4.105 × 4 =
5. 5.750 ÷ 5 =
6. 6.67 − 37 =
7. 7.50% of 270 =
8. 8.101 − 46 =
9. 9.552 − 26 =
10. 10.7 + 3 + 7 + 8 + 1 =
11. 11.41 × 15 =
12. 12.6 + 1 + 4 + 5 + 1 =
13. 13.168 − 69 =
14. 14.₹67.15 − ₹21.85 =
15. 15.325 ÷ 25 =
16. 16.520 − 49 =
17. 17.25% of 810 =
18. 18.Check with nines: 392 + 123 = 514. Correct or wrong? (a) wrong (b) correct
19. 19.Best estimate of 91 × 78? (a) 7200 (b) 14400 (c) 72000 (d) 720
20. 20.Best estimate of 72 × 52? (a) 3500 (b) 350 (c) 7000 (d) 35000
21. 21.10% of 170 =
22. 22.61² =
23. 23.1 + 8 + 2 + 4 =
24. 24.3 + 7 + 4 + 2 =
25. 25.117 × 4 =
26. 26.25% of 900 =
27. 27.88 × 5 =
28. 28.67 × 50 =
29. 29.Check with nines: 84 × 20 = 1687. Correct or wrong? (a) wrong (b) correct
30. 30.16 × 18 =
31. 31.141 − 59 =
32. 32.79² =
33. 33.78 × 4 =
34. 34.₹48.10 − ₹17.50 =
35. 35.9 × 15 =
36. 36.40 + 39 =
37. 37.26 + 35 + 18 + 29 =
38. 38.19 × 13 =
39. 39.5 + 9 + 2 + 2 + 5 =
40. 40.₹56.70 + ₹9.60 =

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