Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 656 · 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. 1.13 + 27 + 74 + 25 =
2. 2.56 × 4 =
3. 3.Best estimate of 58 × 42? (a) 2400 (b) 4800 (c) 24000 (d) 240
4. 4.Check with nines: 45 × 45 = 2030. Correct or wrong? (a) wrong (b) correct
5. 5.Check with nines: 19 × 75 = 1421. Correct or wrong? (a) correct (b) wrong
6. 6.324 + 79 =
7. 7.246 + 57 =
8. 8.53 + 19 =
9. 9.Best estimate of 92 × 92? (a) 16200 (b) 81000 (c) 8100 (d) 810
10. 10.1200 ÷ 25 =
11. 11.Check with nines: 36 × 13 = 468. Correct or wrong? (a) wrong (b) correct
12. 12.6 + 8 + 7 + 2 + 4 =
13. 13.9 + 8 + 1 + 9 + 7 =
14. 14.₹41.05 + ₹29.90 =
15. 15.552 − 46 =
16. 16.655 ÷ 5 =
17. 17.148 × 4 =
18. 18.8 × 15 =
19. 19.14 × 8 =
20. 20.50 × 8 =
21. 21.₹51.30 − ₹46.65 =
22. 22.Best estimate of 401 × 3? (a) 120 (b) 12000 (c) 2400 (d) 1200
23. 23.69² =
24. 24.12 × 16 =
25. 25.44 × 15 =
26. 26.51 × 15 =
27. 27.72 × 8 =
28. 28.81 + 84 + 66 + 48 =
29. 29.16 × 17 =
30. 30.₹79.95 + ₹15.40 =
31. 31.10% of 420 =
32. 32.58 × 5 =
33. 33.87 × 50 =
34. 34.50% of 830 =
35. 35.523 − 47 =
36. 36.Check with nines: 20 × 13 = 260. Correct or wrong? (a) correct (b) wrong
37. 37.Check with nines: 205 + 852 = 1057. Correct or wrong? (a) correct (b) wrong
38. 38.20% of 480 =
39. 39.204 − 18 =
40. 40.12 × 19 =

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