Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 405 · 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.₹24.60 + ₹19.10 =
2. 2.17 × 13 =
3. 3.463 + 69 =
4. 4.Best estimate of 49 × 79? (a) 8000 (b) 40000 (c) 4000 (d) 400
5. 5.222 + 19 =
6. 6.₹45.80 + ₹29.90 =
7. 7.20% of 580 =
8. 8.357 + 99 =
9. 9.5% of 720 =
10. 10.14 × 17 =
11. 11.401 − 57 =
12. 12.286 − 88 =
13. 13.95 × 5 =
14. 14.252 + 47 =
15. 15.5% of 750 =
16. 16.29² =
17. 17.Check with nines: 84 × 85 = 7146. Correct or wrong? (a) correct (b) wrong
18. 18.Check with nines: 65 × 13 = 844. Correct or wrong? (a) correct (b) wrong
19. 19.₹7.80 + ₹3.30 =
20. 20.17 × 15 =
21. 21.₹97.20 + ₹2.45 =
22. 22.Best estimate of 301 × 8? (a) 240 (b) 4800 (c) 24000 (d) 2400
23. 23.Check with nines: 445 + 965 = 1410. Correct or wrong? (a) correct (b) wrong
24. 24.474 + 57 =
25. 25.11 × 15 =
26. 26.Check with nines: 63 × 67 = 4221. Correct or wrong? (a) correct (b) wrong
27. 27.60 + 63 + 17 + 27 =
28. 28.Check with nines: 22 × 27 = 594. Correct or wrong? (a) wrong (b) correct
29. 29.68 + 60 + 87 + 77 =
30. 30.25% of 860 =
31. 31.₹59.30 + ₹3.25 =
32. 32.20% of 680 =
33. 33.₹84.30 + ₹25.40 =
34. 34.93 × 50 =
35. 35.19² =
36. 36.Check with nines: 83 × 17 = 1411. Correct or wrong? (a) correct (b) wrong
37. 37.Check with nines: 968 + 528 = 1496. Correct or wrong? (a) wrong (b) correct
38. 38.3 + 2 + 1 + 9 + 6 =
39. 39.469 − 49 =
40. 40.61² =

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