Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 874 · 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. 1.9 + 2 + 5 + 4 + 8 =
2. 2.Best estimate of 62 × 42? (a) 24000 (b) 240 (c) 2400 (d) 4800
3. 3.395 − 76 =
4. 4.26 × 8 =
5. 5.Best estimate of 503 × 4? (a) 2000 (b) 4000 (c) 20000 (d) 200
6. 6.Check with nines: 19 × 46 = 874. Correct or wrong? (a) correct (b) wrong
7. 7.91² =
8. 8.Check with nines: 537 + 762 = 1299. Correct or wrong? (a) wrong (b) correct
9. 9.52 × 4 =
10. 10.458 − 79 =
11. 11.52 × 50 =
12. 12.19² =
13. 13.73 + 88 =
14. 14.1200 ÷ 50 =
15. 15.425 − 88 =
16. 16.15% of 250 =
17. 17.Check with nines: 708 + 874 = 1582. Correct or wrong? (a) correct (b) wrong
18. 18.41 × 4 =
19. 19.Best estimate of 897 × 9? (a) 8100 (b) 81000 (c) 16200 (d) 810
20. 20.5 + 5 + 6 + 3 =
21. 21.1175 ÷ 25 =
22. 22.5 + 4 + 8 + 8 + 6 =
23. 23.25 × 50 =
24. 24.544 − 68 =
25. 25.17 × 11 =
26. 26.116 + 49 =
27. 27.61² =
28. 28.20% of 370 =
29. 29.122 × 4 =
30. 30.49 × 50 =
31. 31.₹59.55 − ₹30.70 =
32. 32.Check with nines: 732 + 677 = 1412. Correct or wrong? (a) wrong (b) correct
33. 33.Check with nines: 41 × 28 = 1148. Correct or wrong? (a) wrong (b) correct
34. 34.39² =
35. 35.148 + 27 =
36. 36.750 ÷ 50 =
37. 37.10% of 30 =
38. 38.333 + 97 =
39. 39.Best estimate of 29 × 89? (a) 270 (b) 27000 (c) 2700 (d) 5400
40. 40.61 × 15 =

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