Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 534 · 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. 1.372 − 67 =
2. 2.8 + 2 + 9 + 2 =
3. 3.416 − 88 =
4. 4.15% of 850 =
5. 5.21 + 26 + 19 + 21 =
6. 6.Check with nines: 795 + 723 = 1518. Correct or wrong? (a) correct (b) wrong
7. 7.359 + 17 =
8. 8.Check with nines: 740 + 768 = 1512. Correct or wrong? (a) correct (b) wrong
9. 9.Check with nines: 81 × 34 = 2755. Correct or wrong? (a) correct (b) wrong
10. 10.15% of 430 =
11. 11.₹36.80 − ₹11.70 =
12. 12.200 ÷ 25 =
13. 13.8 + 2 + 6 + 4 =
14. 14.70 + 20 + 53 + 67 =
15. 15.3 + 7 + 3 + 5 =
16. 16.323 + 99 =
17. 17.25 × 15 =
18. 18.158 + 97 =
19. 19.88 − 66 =
20. 20.346 − 37 =
21. 21.1100 ÷ 25 =
22. 22.16 × 5 =
23. 23.58 + 17 + 47 + 39 =
24. 24.209 − 67 =
25. 25.32 × 5 =
26. 26.89² =
27. 27.Best estimate of 48 × 39? (a) 20000 (b) 2000 (c) 4000 (d) 200
28. 28.91² =
29. 29.14 × 16 =
30. 30.472 − 29 =
31. 31.₹75.45 − ₹7.95 =
32. 32.84 + 67 + 77 + 19 =
33. 33.69 × 5 =
34. 34.15% of 370 =
35. 35.Best estimate of 88 × 38? (a) 36000 (b) 3600 (c) 360 (d) 7200
36. 36.21 × 15 =
37. 37.1% of 800 =
38. 38.42 × 15 =
39. 39.79 + 37 + 19 + 33 =
40. 40.Check with nines: 30 × 70 = 2105. Correct or wrong? (a) wrong (b) correct

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