Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 229 · 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. 1.304 + 28 =
2. 2.190 + 88 =
3. 3.6 + 4 + 7 + 4 =
4. 4.Check with nines: 264 + 250 = 514. Correct or wrong? (a) correct (b) wrong
5. 5.8 + 8 + 2 + 9 + 2 =
6. 6.19 + 40 + 51 + 21 =
7. 7.21 + 85 + 12 + 43 =
8. 8.Check with nines: 88 × 91 = 8008. Correct or wrong? (a) correct (b) wrong
9. 9.20% of 800 =
10. 10.118 × 4 =
11. 11.35 × 15 =
12. 12.56 + 19 =
13. 13.520 − 19 =
14. 14.43 × 15 =
15. 15.₹42.50 − ₹20.55 =
16. 16.73 × 5 =
17. 17.89 × 5 =
18. 18.53 × 15 =
19. 19.71 × 5 =
20. 20.50% of 780 =
21. 21.75 + 83 + 51 + 36 =
22. 22.40 × 5 =
23. 23.40 + 54 + 59 + 59 =
24. 24.20 × 15 =
25. 25.48 × 8 =
26. 26.16 × 15 =
27. 27.₹68.20 + ₹44.55 =
28. 28.191 + 29 =
29. 29.400 ÷ 50 =
30. 30.Check with nines: 926 + 701 = 1621. Correct or wrong? (a) wrong (b) correct
31. 31.184 − 87 =
32. 32.150 × 4 =
33. 33.Best estimate of 19 × 41? (a) 800 (b) 8000 (c) 1600 (d) 80
34. 34.625 ÷ 25 =
35. 35.302 + 18 =
36. 36.15 × 50 =
37. 37.55 × 8 =
38. 38.47 + 34 + 18 + 34 =
39. 39.Best estimate of 88 × 78? (a) 14400 (b) 7200 (c) 72000 (d) 720
40. 40.29² =

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