Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 38 · 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. 1.375 ÷ 25 =
2. 2.Best estimate of 92 × 72? (a) 6300 (b) 63000 (c) 630 (d) 12600
3. 3.Check with nines: 59 × 43 = 2537. Correct or wrong? (a) wrong (b) correct
4. 4.395 + 89 =
5. 5.129 + 18 =
6. 6.835 ÷ 5 =
7. 7.63 × 8 =
8. 8.Best estimate of 22 × 89? (a) 3600 (b) 1800 (c) 180 (d) 18000
9. 9.₹40.20 + ₹5.35 =
10. 10.7 + 7 + 8 + 2 + 6 =
11. 11.₹58.70 + ₹11.60 =
12. 12.Best estimate of 803 × 4? (a) 320 (b) 3200 (c) 6400 (d) 32000
13. 13.63 + 64 + 60 + 51 =
14. 14.55 × 15 =
15. 15.26 × 5 =
16. 16.29² =
17. 17.20% of 340 =
18. 18.336 + 39 =
19. 19.33 + 97 =
20. 20.9 + 4 + 4 + 6 + 1 =
21. 21.59² =
22. 22.13 × 50 =
23. 23.81² =
24. 24.1% of 540 =
25. 25.454 + 77 =
26. 26.15 + 39 + 29 + 73 =
27. 27.Check with nines: 27 × 76 = 2052. Correct or wrong? (a) wrong (b) correct
28. 28.Best estimate of 101 × 9? (a) 900 (b) 9000 (c) 1800 (d) 90
29. 29.39² =
30. 30.70 + 62 + 23 + 38 =
31. 31.Check with nines: 875 + 221 = 1096. Correct or wrong? (a) correct (b) wrong
32. 32.63 × 50 =
33. 33.323 + 59 =
34. 34.177 − 57 =
35. 35.1% of 800 =
36. 36.₹34.70 − ₹2.50 =
37. 37.13 × 5 =
38. 38.Best estimate of 397 × 9? (a) 36000 (b) 3600 (c) 7200 (d) 360
39. 39.20% of 820 =
40. 40.96 × 50 =

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