Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 877 · 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. 1.69 × 4 =
2. 2.89² =
3. 3.Check with nines: 28 × 86 = 2405. Correct or wrong? (a) wrong (b) correct
4. 4.1% of 890 =
5. 5.86 × 5 =
6. 6.59 × 15 =
7. 7.5% of 540 =
8. 8.8 + 8 + 2 + 8 =
9. 9.48 + 81 + 47 + 22 =
10. 10.317 + 29 =
11. 11.69 × 50 =
12. 12.Check with nines: 716 + 161 = 877. Correct or wrong? (a) wrong (b) correct
13. 13.79² =
14. 14.2 + 2 + 2 + 8 =
15. 15.41 + 50 + 65 + 30 =
16. 16.139 × 4 =
17. 17.87 + 19 + 62 + 28 =
18. 18.41 × 15 =
19. 19.373 + 59 =
20. 20.585 − 26 =
21. 21.Check with nines: 34 × 55 = 1870. Correct or wrong? (a) correct (b) wrong
22. 22.₹24.30 + ₹27.05 =
23. 23.13 × 15 =
24. 24.17 × 13 =
25. 25.7 + 5 + 6 + 8 + 2 =
26. 26.5 + 5 + 2 + 6 =
27. 27.13 × 17 =
28. 28.8 + 7 + 6 + 6 + 3 =
29. 29.500 ÷ 50 =
30. 30.58 × 50 =
31. 31.₹92.95 − ₹37.75 =
32. 32.₹61.05 + ₹25.60 =
33. 33.₹49.20 − ₹45.60 =
34. 34.Best estimate of 199 × 6? (a) 120 (b) 12000 (c) 2400 (d) 1200
35. 35.89² =
36. 36.2 + 6 + 6 + 8 =
37. 37.Check with nines: 900 + 488 = 1388. Correct or wrong? (a) wrong (b) correct
38. 38.31 × 8 =
39. 39.50 × 15 =
40. 40.29² =

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