Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 841 · 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. 1.1 + 9 + 3 + 7 =
2. 2.Check with nines: 148 + 154 = 308. Correct or wrong? (a) wrong (b) correct
3. 3.₹95.60 + ₹33.25 =
4. 4.2 + 3 + 7 + 1 + 4 =
5. 5.1700 ÷ 50 =
6. 6.11 × 11 =
7. 7.26 × 15 =
8. 8.194 − 69 =
9. 9.397 + 69 =
10. 10.Check with nines: 76 × 16 = 1216. Correct or wrong? (a) correct (b) wrong
11. 11.120 ÷ 5 =
12. 12.7 + 1 + 3 + 6 =
13. 13.2 + 7 + 8 + 8 =
14. 14.₹71.55 + ₹2.75 =
15. 15.70 × 5 =
16. 16.44 × 15 =
17. 17.71² =
18. 18.112 − 67 =
19. 19.166 + 17 =
20. 20.45 × 15 =
21. 21.₹40.90 − ₹21.05 =
22. 22.14 × 15 =
23. 23.₹95.15 − ₹9.30 =
24. 24.89² =
25. 25.15% of 440 =
26. 26.3 + 7 + 2 + 3 + 8 =
27. 27.418 + 78 =
28. 28.₹21.60 + ₹26.85 =
29. 29.7 + 3 + 4 + 7 =
30. 30.Best estimate of 89 × 88? (a) 8100 (b) 810 (c) 16200 (d) 81000
31. 31.Check with nines: 88 × 46 = 4043. Correct or wrong? (a) correct (b) wrong
32. 32.167 + 37 =
33. 33.61 × 5 =
34. 34.Check with nines: 517 + 244 = 765. Correct or wrong? (a) wrong (b) correct
35. 35.494 − 39 =
36. 36.₹67.75 + ₹2.30 =
37. 37.11 × 14 =
38. 38.79 + 71 + 85 + 17 =
39. 39.Best estimate of 69 × 59? (a) 8400 (b) 420 (c) 4200 (d) 42000
40. 40.1325 ÷ 25 =

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