Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 79 · 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. 1.15% of 520 =
2. 2.78 × 5 =
3. 3.Best estimate of 701 × 3? (a) 2100 (b) 4200 (c) 21000 (d) 210
4. 4.27 × 4 =
5. 5.69² =
6. 6.9 + 5 + 5 + 9 + 5 =
7. 7.590 − 97 =
8. 8.45 + 84 + 56 + 65 =
9. 9.Check with nines: 37 × 51 = 1885. Correct or wrong? (a) correct (b) wrong
10. 10.19² =
11. 11.₹37.65 − ₹5.65 =
12. 12.1700 ÷ 50 =
13. 13.459 + 68 =
14. 14.Check with nines: 32 × 44 = 1413. Correct or wrong? (a) wrong (b) correct
15. 15.29² =
16. 16.₹48.25 + ₹8.90 =
17. 17.Check with nines: 151 + 458 = 609. Correct or wrong? (a) wrong (b) correct
18. 18.19 + 68 + 54 + 12 =
19. 19.88 × 50 =
20. 20.1500 ÷ 50 =
21. 21.259 − 39 =
22. 22.5 + 7 + 7 + 5 =
23. 23.31 + 60 + 72 + 41 =
24. 24.1800 ÷ 50 =
25. 25.Best estimate of 103 × 6? (a) 60 (b) 600 (c) 6000 (d) 1200
26. 26.32 + 99 =
27. 27.59² =
28. 28.Check with nines: 422 + 388 = 810. Correct or wrong? (a) wrong (b) correct
29. 29.25% of 720 =
30. 30.50 + 41 + 34 + 71 =
31. 31.144 × 4 =
32. 32.₹90.45 − ₹23.10 =
33. 33.189 + 98 =
34. 34.59² =
35. 35.25% of 540 =
36. 36.15% of 170 =
37. 37.64 × 5 =
38. 38.252 + 99 =
39. 39.160 × 4 =
40. 40.7 + 5 + 3 + 5 + 8 =

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