Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 401 · 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. 1.1000 ÷ 50 =
2. 2.5% of 720 =
3. 3.16 × 14 =
4. 4.10% of 300 =
5. 5.5 + 5 + 3 + 1 =
6. 6.Best estimate of 52 × 92? (a) 45000 (b) 4500 (c) 9000 (d) 450
7. 7.46 × 4 =
8. 8.40 + 28 =
9. 9.7 + 2 + 6 + 4 =
10. 10.366 + 47 =
11. 11.Best estimate of 42 × 69? (a) 2800 (b) 28000 (c) 280 (d) 5600
12. 12.5% of 810 =
13. 13.10% of 380 =
14. 14.Best estimate of 22 × 32? (a) 1200 (b) 600 (c) 60 (d) 6000
15. 15.19 × 18 =
16. 16.24 + 24 + 38 + 87 =
17. 17.2 + 9 + 8 + 5 =
18. 18.₹58.35 − ₹38.60 =
19. 19.Best estimate of 68 × 38? (a) 2800 (b) 5600 (c) 28000 (d) 280
20. 20.20% of 410 =
21. 21.₹36.30 − ₹18.55 =
22. 22.₹37.55 + ₹30.80 =
23. 23.25% of 70 =
24. 24.Check with nines: 95 × 48 = 4557. Correct or wrong? (a) wrong (b) correct
25. 25.21² =
26. 26.710 ÷ 5 =
27. 27.61 × 15 =
28. 28.59² =
29. 29.39 + 70 + 13 + 78 =
30. 30.76 + 23 + 65 + 15 =
31. 31.36 × 15 =
32. 32.1 + 8 + 1 + 9 + 9 =
33. 33.5% of 410 =
34. 34.Check with nines: 592 + 340 = 930. Correct or wrong? (a) correct (b) wrong
35. 35.50% of 820 =
36. 36.1100 ÷ 50 =
37. 37.454 + 27 =
38. 38.43 + 41 + 86 + 58 =
39. 39.Best estimate of 397 × 5? (a) 4000 (b) 20000 (c) 2000 (d) 200
40. 40.37 + 30 + 48 + 56 =

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