Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 954 · 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. 1.8 × 15 =
2. 2.402 + 37 =
3. 3.10% of 570 =
4. 4.Best estimate of 899 × 4? (a) 36000 (b) 360 (c) 3600 (d) 7200
5. 5.107 × 4 =
6. 6.112 + 49 =
7. 7.38 + 59 =
8. 8.195 − 99 =
9. 9.6 × 15 =
10. 10.21² =
11. 11.₹80.35 − ₹18.25 =
12. 12.14 × 17 =
13. 13.19 × 15 =
14. 14.Check with nines: 846 + 271 = 1124. Correct or wrong? (a) correct (b) wrong
15. 15.15% of 400 =
16. 16.13 × 11 =
17. 17.15 × 15 =
18. 18.8 + 3 + 5 + 6 + 7 =
19. 19.1% of 20 =
20. 20.39 × 8 =
21. 21.Check with nines: 708 + 129 = 837. Correct or wrong? (a) wrong (b) correct
22. 22.Best estimate of 32 × 69? (a) 21000 (b) 2100 (c) 4200 (d) 210
23. 23.₹64.30 + ₹7.65 =
24. 24.₹17.65 + ₹49.30 =
25. 25.19² =
26. 26.Check with nines: 16 × 74 = 1184. Correct or wrong? (a) wrong (b) correct
27. 27.333 − 57 =
28. 28.134 + 68 =
29. 29.4 × 15 =
30. 30.6 × 15 =
31. 31.29² =
32. 32.115 ÷ 5 =
33. 33.19 × 11 =
34. 34.12 × 15 =
35. 35.₹43.35 − ₹17.25 =
36. 36.Check with nines: 946 + 232 = 1178. Correct or wrong? (a) wrong (b) correct
37. 37.56 × 5 =
38. 38.14 × 15 =
39. 39.58 + 82 + 32 + 67 =
40. 40.12 × 12 =

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