Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 257 · 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. 1.59 + 27 + 80 + 64 =
2. 2.Best estimate of 199 × 7? (a) 2800 (b) 140 (c) 14000 (d) 1400
3. 3.9 + 2 + 6 + 4 + 5 =
4. 4.127 × 4 =
5. 5.49² =
6. 6.59² =
7. 7.600 ÷ 25 =
8. 8.476 + 97 =
9. 9.41² =
10. 10.15 × 4 =
11. 11.69² =
12. 12.Best estimate of 71 × 82? (a) 5600 (b) 56000 (c) 560 (d) 11200
13. 13.₹12.55 + ₹46.85 =
14. 14.900 ÷ 5 =
15. 15.51 × 15 =
16. 16.Best estimate of 42 × 39? (a) 160 (b) 1600 (c) 3200 (d) 16000
17. 17.Check with nines: 56 × 46 = 2571. Correct or wrong? (a) wrong (b) correct
18. 18.17 × 13 =
19. 19.₹69.60 − ₹49.70 =
20. 20.Best estimate of 19 × 32? (a) 1200 (b) 6000 (c) 600 (d) 60
21. 21.20 × 5 =
22. 22.67 × 8 =
23. 23.51² =
24. 24.5 + 5 + 6 + 3 + 7 =
25. 25.Check with nines: 651 + 913 = 1567. Correct or wrong? (a) correct (b) wrong
26. 26.291 + 59 =
27. 27.4 × 15 =
28. 28.545 ÷ 5 =
29. 29.57 × 15 =
30. 30.725 ÷ 5 =
31. 31.Best estimate of 21 × 38? (a) 1600 (b) 8000 (c) 800 (d) 80
32. 32.20% of 130 =
33. 33.43 + 12 + 67 + 27 =
34. 34.348 − 59 =
35. 35.₹73.55 + ₹38.45 =
36. 36.₹71.45 − ₹43.20 =
37. 37.45 × 5 =
38. 38.559 − 67 =
39. 39.Check with nines: 133 + 783 = 916. Correct or wrong? (a) wrong (b) correct
40. 40.Best estimate of 48 × 18? (a) 1000 (b) 100 (c) 2000 (d) 10000

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