Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 225 · 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. 1.512 − 66 =
2. 2.16 × 13 =
3. 3.4 + 3 + 7 + 4 =
4. 4.18 × 14 =
5. 5.Check with nines: 16 × 52 = 837. Correct or wrong? (a) wrong (b) correct
6. 6.1 + 1 + 7 + 9 + 4 =
7. 7.400 ÷ 50 =
8. 8.59 × 15 =
9. 9.32 × 5 =
10. 10.38 × 15 =
11. 11.7 × 15 =
12. 12.221 − 99 =
13. 13.68 × 50 =
14. 14.184 + 87 =
15. 15.4 + 5 + 6 + 4 =
16. 16.4 + 8 + 5 + 2 =
17. 17.50 × 15 =
18. 18.1% of 260 =
19. 19.97 × 5 =
20. 20.Best estimate of 399 × 9? (a) 36000 (b) 360 (c) 7200 (d) 3600
21. 21.69² =
22. 22.19 × 8 =
23. 23.2 + 5 + 6 + 1 + 5 =
24. 24.58 + 27 + 11 + 46 =
25. 25.330 − 39 =
26. 26.13 × 15 =
27. 27.29² =
28. 28.536 − 69 =
29. 29.49 × 8 =
30. 30.890 ÷ 5 =
31. 31.₹37.05 − ₹21.05 =
32. 32.₹20.65 − ₹16.60 =
33. 33.480 − 67 =
34. 34.₹86.85 − ₹27.95 =
35. 35.38 × 8 =
36. 36.246 + 29 =
37. 37.Check with nines: 19 × 27 = 513. Correct or wrong? (a) correct (b) wrong
38. 38.15 × 4 =
39. 39.26 + 17 + 37 + 82 =
40. 40.Best estimate of 201 × 3? (a) 1200 (b) 60 (c) 6000 (d) 600

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