Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 228 · 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. 1.955 ÷ 5 =
2. 2.Best estimate of 698 × 6? (a) 8400 (b) 4200 (c) 420 (d) 42000
3. 3.50% of 780 =
4. 4.12 × 8 =
5. 5.3 + 6 + 2 + 3 + 7 =
6. 6.12 × 15 =
7. 7.Best estimate of 697 × 5? (a) 7000 (b) 3500 (c) 35000 (d) 350
8. 8.Best estimate of 71 × 19? (a) 140 (b) 2800 (c) 14000 (d) 1400
9. 9.Check with nines: 250 + 980 = 1237. Correct or wrong? (a) correct (b) wrong
10. 10.14 × 12 =
11. 11.127 − 18 =
12. 12.84 × 4 =
13. 13.18 × 17 =
14. 14.20% of 500 =
15. 15.125 ÷ 5 =
16. 16.189 − 97 =
17. 17.39² =
18. 18.29 × 8 =
19. 19.9 + 4 + 6 + 1 + 9 =
20. 20.10% of 390 =
21. 21.Best estimate of 82 × 81? (a) 12800 (b) 640 (c) 64000 (d) 6400
22. 22.15 × 16 =
23. 23.71 + 69 + 14 + 70 =
24. 24.30 × 15 =
25. 25.117 × 4 =
26. 26.1125 ÷ 25 =
27. 27.60 × 15 =
28. 28.15% of 320 =
29. 29.₹8.75 + ₹28.30 =
30. 30.14 × 15 =
31. 31.11 × 18 =
32. 32.71² =
33. 33.₹67.15 − ₹39.50 =
34. 34.18 × 15 =
35. 35.Check with nines: 70 × 54 = 3772. Correct or wrong? (a) wrong (b) correct
36. 36.62 × 15 =
37. 37.1 + 5 + 2 + 6 + 4 =
38. 38.5% of 710 =
39. 39.68 × 5 =
40. 40.54 + 38 + 63 + 14 =

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