Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 582 · 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. 1.1% of 690 =
2. 2.₹30.30 + ₹14.50 =
3. 3.4 + 9 + 2 + 6 =
4. 4.20% of 260 =
5. 5.₹76.80 − ₹42.20 =
6. 6.149 + 67 =
7. 7.61 × 15 =
8. 8.38 × 15 =
9. 9.3 + 7 + 5 + 3 =
10. 10.₹48.95 − ₹34.50 =
11. 11.Check with nines: 87 × 82 = 7134. Correct or wrong? (a) correct (b) wrong
12. 12.20% of 400 =
13. 13.20% of 480 =
14. 14.18 × 18 =
15. 15.15% of 120 =
16. 16.16 × 11 =
17. 17.331 + 38 =
18. 18.131 × 4 =
19. 19.78 + 15 + 59 + 17 =
20. 20.Check with nines: 37 × 43 = 1599. Correct or wrong? (a) correct (b) wrong
21. 21.Best estimate of 91 × 91? (a) 8100 (b) 16200 (c) 81000 (d) 810
22. 22.322 − 26 =
23. 23.53 × 5 =
24. 24.18 × 16 =
25. 25.4 + 6 + 5 + 7 + 6 =
26. 26.₹97.90 − ₹12.25 =
27. 27.14 × 15 =
28. 28.15 × 5 =
29. 29.Check with nines: 168 + 343 = 511. Correct or wrong? (a) correct (b) wrong
30. 30.255 + 79 =
31. 31.57 × 8 =
32. 32.10% of 880 =
33. 33.26 + 57 + 50 + 51 =
34. 34.21 × 50 =
35. 35.382 + 19 =
36. 36.Best estimate of 798 × 6? (a) 4800 (b) 48000 (c) 9600 (d) 480
37. 37.434 − 87 =
38. 38.4 + 4 + 6 + 1 =
39. 39.141 + 57 =
40. 40.54 + 59 =

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