Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 369 · 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. 1.600 ÷ 50 =
2. 2.₹11.45 − ₹9.15 =
3. 3.42 × 8 =
4. 4.167 − 56 =
5. 5.17 × 11 =
6. 6.₹84.15 − ₹13.40 =
7. 7.2 + 8 + 8 + 3 + 7 =
8. 8.47 + 27 + 88 + 26 =
9. 9.Check with nines: 98 × 95 = 9310. Correct or wrong? (a) correct (b) wrong
10. 10.15% of 600 =
11. 11.₹46.65 − ₹15.65 =
12. 12.497 + 39 =
13. 13.158 + 69 =
14. 14.750 ÷ 50 =
15. 15.69 + 20 + 34 + 19 =
16. 16.19 × 14 =
17. 17.100 ÷ 5 =
18. 18.Check with nines: 26 × 23 = 598. Correct or wrong? (a) wrong (b) correct
19. 19.₹96.90 − ₹19.50 =
20. 20.₹44.55 − ₹31.25 =
21. 21.476 − 28 =
22. 22.Best estimate of 898 × 7? (a) 6300 (b) 630 (c) 12600 (d) 63000
23. 23.₹72.05 − ₹6.90 =
24. 24.Check with nines: 19 × 28 = 534. Correct or wrong? (a) correct (b) wrong
25. 25.290 − 18 =
26. 26.79 + 18 =
27. 27.19² =
28. 28.1% of 570 =
29. 29.138 − 59 =
30. 30.51 × 15 =
31. 31.685 ÷ 5 =
32. 32.Check with nines: 245 + 633 = 884. Correct or wrong? (a) wrong (b) correct
33. 33.328 + 97 =
34. 34.30 × 15 =
35. 35.31² =
36. 36.₹93.30 + ₹5.90 =
37. 37.10 × 15 =
38. 38.15% of 630 =
39. 39.Check with nines: 666 + 319 = 987. Correct or wrong? (a) wrong (b) correct
40. 40.35 × 50 =

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