Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 832 · 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. 1.4 + 8 + 6 + 3 =
2. 2.49 × 4 =
3. 3.389 + 98 =
4. 4.Check with nines: 81 × 16 = 1296. Correct or wrong? (a) wrong (b) correct
5. 5.3 + 7 + 5 + 7 =
6. 6.31² =
7. 7.386 + 19 =
8. 8.39 × 15 =
9. 9.296 + 39 =
10. 10.15 × 11 =
11. 11.8 + 7 + 3 + 5 =
12. 12.200 + 37 =
13. 13.18 × 19 =
14. 14.69 + 47 + 17 + 54 =
15. 15.970 ÷ 5 =
16. 16.38 × 15 =
17. 17.Check with nines: 456 + 600 = 1049. Correct or wrong? (a) correct (b) wrong
18. 18.960 ÷ 5 =
19. 19.72 × 8 =
20. 20.₹57.85 + ₹7.30 =
21. 21.₹10.25 + ₹6.30 =
22. 22.34 × 5 =
23. 23.65 + 46 + 29 + 40 =
24. 24.32 + 57 =
25. 25.88 + 21 + 29 + 53 =
26. 26.41 × 15 =
27. 27.₹58.60 + ₹46.65 =
28. 28.254 − 97 =
29. 29.13 + 31 + 55 + 76 =
30. 30.27 × 8 =
31. 31.Check with nines: 18 × 52 = 936. Correct or wrong? (a) correct (b) wrong
32. 32.41² =
33. 33.1% of 220 =
34. 34.18 × 17 =
35. 35.Check with nines: 778 + 931 = 1709. Correct or wrong? (a) correct (b) wrong
36. 36.₹33.30 − ₹3.85 =
37. 37.184 + 28 =
38. 38.21² =
39. 39.Best estimate of 41 × 41? (a) 160 (b) 1600 (c) 16000 (d) 3200
40. 40.Check with nines: 190 + 633 = 830. Correct or wrong? (a) wrong (b) correct

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