Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 504 · 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 92 × 48? (a) 450 (b) 45000 (c) 9000 (d) 4500
2. 2.Check with nines: 55 × 70 = 3850. Correct or wrong? (a) wrong (b) correct
3. 3.5 + 6 + 1 + 9 =
4. 4.295 ÷ 5 =
5. 5.₹41.90 + ₹46.80 =
6. 6.98 + 59 =
7. 7.59² =
8. 8.26 + 43 + 72 + 27 =
9. 9.472 + 29 =
10. 10.Check with nines: 85 × 77 = 6545. Correct or wrong? (a) correct (b) wrong
11. 11.13 × 14 =
12. 12.66 × 4 =
13. 13.Best estimate of 52 × 31? (a) 3000 (b) 15000 (c) 150 (d) 1500
14. 14.33 + 65 + 70 + 23 =
15. 15.5% of 350 =
16. 16.447 + 99 =
17. 17.31² =
18. 18.7 + 2 + 8 + 1 + 8 =
19. 19.400 ÷ 50 =
20. 20.43 × 8 =
21. 21.72 − 57 =
22. 22.15% of 50 =
23. 23.81² =
24. 24.1500 ÷ 25 =
25. 25.Best estimate of 902 × 7? (a) 63000 (b) 630 (c) 6300 (d) 12600
26. 26.16 × 8 =
27. 27.92 × 50 =
28. 28.₹97.20 + ₹45.80 =
29. 29.51 × 8 =
30. 30.19 × 8 =
31. 31.1 + 5 + 9 + 6 =
32. 32.Check with nines: 27 × 15 = 405. Correct or wrong? (a) correct (b) wrong
33. 33.28 × 50 =
34. 34.50% of 800 =
35. 35.88 × 5 =
36. 36.89² =
37. 37.41 × 15 =
38. 38.20% of 440 =
39. 39.24 + 44 + 73 + 40 =
40. 40.₹94.15 + ₹3.50 =

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