Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 902 · 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. 1.34 × 15 =
2. 2.104 − 26 =
3. 3.Check with nines: 81 × 88 = 7126. Correct or wrong? (a) wrong (b) correct
4. 4.Best estimate of 199 × 6? (a) 12000 (b) 1200 (c) 2400 (d) 120
5. 5.Check with nines: 666 + 158 = 824. Correct or wrong? (a) correct (b) wrong
6. 6.81² =
7. 7.1 + 3 + 4 + 9 =
8. 8.93 × 4 =
9. 9.5 + 5 + 2 + 5 =
10. 10.Best estimate of 78 × 58? (a) 48000 (b) 9600 (c) 480 (d) 4800
11. 11.5 + 2 + 3 + 5 =
12. 12.1% of 190 =
13. 13.207 + 78 =
14. 14.Check with nines: 336 + 373 = 709. Correct or wrong? (a) wrong (b) correct
15. 15.30 × 4 =
16. 16.15% of 780 =
17. 17.450 + 89 =
18. 18.Check with nines: 542 + 487 = 1029. Correct or wrong? (a) correct (b) wrong
19. 19.81² =
20. 20.Best estimate of 299 × 9? (a) 2700 (b) 5400 (c) 27000 (d) 270
21. 21.5 + 1 + 1 + 5 =
22. 22.225 ÷ 25 =
23. 23.1125 ÷ 25 =
24. 24.338 + 89 =
25. 25.₹89.80 + ₹12.95 =
26. 26.320 − 19 =
27. 27.20 × 5 =
28. 28.135 × 4 =
29. 29.27 × 4 =
30. 30.₹94.05 − ₹21.40 =
31. 31.597 − 76 =
32. 32.14 + 40 + 68 + 80 =
33. 33.68 + 83 + 27 + 54 =
34. 34.83 + 81 + 11 + 31 =
35. 35.₹79.85 + ₹35.35 =
36. 36.171 − 36 =
37. 37.121 × 4 =
38. 38.685 ÷ 5 =
39. 39.575 ÷ 25 =
40. 40.24 + 15 + 33 + 71 =

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