Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 885 · 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.₹73.50 − ₹48.30 =
2. 2.4 + 6 + 2 + 4 + 4 =
3. 3.135 + 59 =
4. 4.₹90.65 − ₹13.45 =
5. 5.₹10.30 + ₹2.65 =
6. 6.Best estimate of 203 × 4? (a) 8000 (b) 80 (c) 800 (d) 1600
7. 7.Check with nines: 56 × 23 = 1288. Correct or wrong? (a) wrong (b) correct
8. 8.44 + 19 =
9. 9.15% of 610 =
10. 10.17 × 14 =
11. 11.29 × 8 =
12. 12.164 − 67 =
13. 13.40 × 15 =
14. 14.₹13.05 + ₹2.10 =
15. 15.900 ÷ 5 =
16. 16.15% of 80 =
17. 17.282 + 37 =
18. 18.₹44.05 − ₹5.20 =
19. 19.335 + 47 =
20. 20.18 × 15 =
21. 21.8 × 15 =
22. 22.8 + 8 + 3 + 2 =
23. 23.256 − 59 =
24. 24.363 + 99 =
25. 25.30 × 15 =
26. 26.₹84.80 + ₹15.10 =
27. 27.56 × 50 =
28. 28.54 × 15 =
29. 29.1150 ÷ 50 =
30. 30.1 + 7 + 2 + 6 + 3 =
31. 31.440 + 19 =
32. 32.Best estimate of 301 × 8? (a) 4800 (b) 240 (c) 24000 (d) 2400
33. 33.₹98.75 − ₹32.10 =
34. 34.54 − 18 =
35. 35.15 × 19 =
36. 36.Check with nines: 598 + 984 = 1582. Correct or wrong? (a) wrong (b) correct
37. 37.91 × 50 =
38. 38.Check with nines: 73 × 43 = 3138. Correct or wrong? (a) wrong (b) correct
39. 39.61 + 41 + 89 + 49 =
40. 40.345 − 68 =

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