Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 20 · 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. 1.346 − 18 =
2. 2.Check with nines: 413 + 991 = 1404. Correct or wrong? (a) wrong (b) correct
3. 3.31² =
4. 4.14 × 15 =
5. 5.88 + 53 + 34 + 24 =
6. 6.1150 ÷ 50 =
7. 7.9 + 5 + 1 + 6 =
8. 8.Check with nines: 633 + 905 = 1538. Correct or wrong? (a) correct (b) wrong
9. 9.950 ÷ 5 =
10. 10.307 + 48 =
11. 11.41² =
12. 12.18 × 5 =
13. 13.45 + 57 + 43 + 48 =
14. 14.53 × 8 =
15. 15.2 + 8 + 6 + 5 =
16. 16.24 × 15 =
17. 17.23 + 60 + 59 + 23 =
18. 18.₹97.10 + ₹4.95 =
19. 19.19 × 17 =
20. 20.650 ÷ 5 =
21. 21.13 × 18 =
22. 22.18 × 14 =
23. 23.5% of 280 =
24. 24.3 + 7 + 4 + 7 =
25. 25.83 × 5 =
26. 26.800 ÷ 25 =
27. 27.34 × 5 =
28. 28.Best estimate of 197 × 3? (a) 60 (b) 6000 (c) 1200 (d) 600
29. 29.Best estimate of 39 × 21? (a) 8000 (b) 80 (c) 800 (d) 1600
30. 30.Best estimate of 499 × 6? (a) 30000 (b) 6000 (c) 300 (d) 3000
31. 31.9 + 8 + 1 + 4 =
32. 32.16 × 14 =
33. 33.Best estimate of 602 × 8? (a) 9600 (b) 480 (c) 4800 (d) 48000
34. 34.20 + 52 + 74 + 54 =
35. 35.1350 ÷ 25 =
36. 36.318 − 39 =
37. 37.24 × 8 =
38. 38.15 × 11 =
39. 39.20% of 240 =
40. 40.73 × 8 =

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