Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 985 · 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. 1.2 + 9 + 9 + 1 =
2. 2.67 × 5 =
3. 3.53 × 15 =
4. 4.₹38.10 + ₹9.70 =
5. 5.Best estimate of 102 × 9? (a) 1800 (b) 900 (c) 9000 (d) 90
6. 6.₹31.60 + ₹2.95 =
7. 7.11 × 18 =
8. 8.56 + 58 + 65 + 48 =
9. 9.190 − 67 =
10. 10.Best estimate of 201 × 8? (a) 160 (b) 3200 (c) 1600 (d) 16000
11. 11.37 × 8 =
12. 12.420 + 18 =
13. 13.53 × 50 =
14. 14.1650 ÷ 50 =
15. 15.1550 ÷ 50 =
16. 16.Best estimate of 499 × 7? (a) 7000 (b) 3500 (c) 35000 (d) 350
17. 17.48 + 80 + 51 + 36 =
18. 18.11 × 11 =
19. 19.₹96.65 + ₹40.35 =
20. 20.201 − 18 =
21. 21.750 ÷ 50 =
22. 22.12 × 19 =
23. 23.8 + 4 + 2 + 4 + 6 =
24. 24.1 + 8 + 3 + 9 + 3 =
25. 25.Best estimate of 197 × 9? (a) 18000 (b) 1800 (c) 3600 (d) 180
26. 26.Check with nines: 82 × 32 = 2624. Correct or wrong? (a) wrong (b) correct
27. 27.Best estimate of 72 × 42? (a) 280 (b) 28000 (c) 2800 (d) 5600
28. 28.27 + 14 + 63 + 86 =
29. 29.20% of 850 =
30. 30.30 × 8 =
31. 31.4 + 4 + 1 + 3 + 6 =
32. 32.5% of 100 =
33. 33.160 + 29 =
34. 34.13 × 12 =
35. 35.15 × 4 =
36. 36.10% of 880 =
37. 37.145 ÷ 5 =
38. 38.59 × 15 =
39. 39.13 × 18 =
40. 40.₹23.75 − ₹5.70 =

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