Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 210 · 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. 1.483 + 39 =
2. 2.125 ÷ 5 =
3. 3.77 + 61 + 82 + 78 =
4. 4.24 × 8 =
5. 5.Best estimate of 201 × 3? (a) 60 (b) 600 (c) 1200 (d) 6000
6. 6.Check with nines: 27 × 45 = 1215. Correct or wrong? (a) correct (b) wrong
7. 7.8 + 5 + 2 + 1 =
8. 8.12 × 50 =
9. 9.59 × 4 =
10. 10.16 × 19 =
11. 11.₹13.45 − ₹2.20 =
12. 12.Check with nines: 701 + 267 = 969. Correct or wrong? (a) correct (b) wrong
13. 13.1425 ÷ 25 =
14. 14.50 × 15 =
15. 15.11 × 18 =
16. 16.₹57.60 + ₹23.10 =
17. 17.Best estimate of 42 × 78? (a) 6400 (b) 320 (c) 3200 (d) 32000
18. 18.120 ÷ 5 =
19. 19.21 × 15 =
20. 20.51² =
21. 21.1400 ÷ 50 =
22. 22.14 × 13 =
23. 23.Check with nines: 660 + 122 = 778. Correct or wrong? (a) wrong (b) correct
24. 24.8 + 1 + 2 + 2 =
25. 25.₹39.65 + ₹30.05 =
26. 26.15 × 13 =
27. 27.78 + 13 + 55 + 32 =
28. 28.1% of 350 =
29. 29.79 + 53 + 40 + 46 =
30. 30.20% of 770 =
31. 31.10 × 15 =
32. 32.12 × 5 =
33. 33.22 × 15 =
34. 34.1 + 2 + 3 + 8 =
35. 35.113 − 68 =
36. 36.169 − 19 =
37. 37.31² =
38. 38.5% of 780 =
39. 39.49² =
40. 40.Check with nines: 64 × 71 = 4544. Correct or wrong? (a) wrong (b) correct

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