Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 266 · 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.Check with nines: 64 × 12 = 776. Correct or wrong? (a) correct (b) wrong
2. 2.43 × 50 =
3. 3.9 + 1 + 7 + 1 + 8 =
4. 4.61 × 15 =
5. 5.18 × 13 =
6. 6.56 + 57 + 73 + 68 =
7. 7.29² =
8. 8.2 + 4 + 2 + 6 =
9. 9.145 + 27 =
10. 10.22 × 8 =
11. 11.₹96.30 − ₹2.20 =
12. 12.81² =
13. 13.56 × 15 =
14. 14.800 ÷ 5 =
15. 15.78 × 5 =
16. 16.Best estimate of 601 × 7? (a) 420 (b) 8400 (c) 42000 (d) 4200
17. 17.₹90.65 + ₹43.45 =
18. 18.24 × 8 =
19. 19.84 × 4 =
20. 20.63 + 86 + 77 + 81 =
21. 21.₹24.05 + ₹45.20 =
22. 22.13 × 8 =
23. 23.400 ÷ 25 =
24. 24.164 + 57 =
25. 25.₹31.25 − ₹30.80 =
26. 26.61 × 4 =
27. 27.Best estimate of 22 × 38? (a) 800 (b) 8000 (c) 80 (d) 1600
28. 28.₹95.45 + ₹17.40 =
29. 29.50% of 450 =
30. 30.13 × 18 =
31. 31.Check with nines: 38 × 63 = 2394. Correct or wrong? (a) correct (b) wrong
32. 32.39 × 4 =
33. 33.16 × 13 =
34. 34.81² =
35. 35.Check with nines: 52 × 71 = 3692. Correct or wrong? (a) correct (b) wrong
36. 36.3 + 8 + 4 + 2 + 2 =
37. 37.46 × 15 =
38. 38.41² =
39. 39.244 − 66 =
40. 40.₹60.50 + ₹43.60 =

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