Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 224 · 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.₹58.95 − ₹24.85 =
2. 2.Check with nines: 571 + 976 = 1547. Correct or wrong? (a) correct (b) wrong
3. 3.7 + 9 + 1 + 1 =
4. 4.94 × 5 =
5. 5.₹36.65 + ₹31.60 =
6. 6.20% of 450 =
7. 7.50 × 15 =
8. 8.20 × 15 =
9. 9.69² =
10. 10.216 + 78 =
11. 11.469 + 77 =
12. 12.217 + 57 =
13. 13.91² =
14. 14.275 − 28 =
15. 15.11 + 14 + 74 + 50 =
16. 16.16 × 19 =
17. 17.17 × 12 =
18. 18.600 ÷ 50 =
19. 19.15% of 890 =
20. 20.91² =
21. 21.52 × 8 =
22. 22.17 × 18 =
23. 23.51 + 38 + 46 + 74 =
24. 24.₹93.95 + ₹29.75 =
25. 25.43 × 15 =
26. 26.Best estimate of 72 × 71? (a) 49000 (b) 9800 (c) 4900 (d) 490
27. 27.8 × 15 =
28. 28.20% of 870 =
29. 29.17 × 14 =
30. 30.Check with nines: 412 + 387 = 795. Correct or wrong? (a) wrong (b) correct
31. 31.50% of 200 =
32. 32.Check with nines: 81 × 73 = 5913. Correct or wrong? (a) wrong (b) correct
33. 33.825 ÷ 25 =
34. 34.84 × 5 =
35. 35.Check with nines: 75 × 29 = 2175. Correct or wrong? (a) correct (b) wrong
36. 36.₹70.70 − ₹17.20 =
37. 37.71² =
38. 38.53 × 15 =
39. 39.7 + 9 + 1 + 1 + 9 =
40. 40.Best estimate of 68 × 32? (a) 210 (b) 2100 (c) 4200 (d) 21000

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