Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 789 · 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. 1.51 + 65 + 12 + 75 =
2. 2.13 × 11 =
3. 3.159 × 4 =
4. 4.26 + 70 + 78 + 14 =
5. 5.21 × 8 =
6. 6.12 × 13 =
7. 7.55 × 15 =
8. 8.Check with nines: 406 + 125 = 531. Correct or wrong? (a) wrong (b) correct
9. 9.400 ÷ 50 =
10. 10.850 ÷ 25 =
11. 11.88 + 88 + 70 + 26 =
12. 12.292 + 99 =
13. 13.21² =
14. 14.₹5.80 + ₹26.85 =
15. 15.₹58.40 + ₹37.55 =
16. 16.13 + 66 + 31 + 15 =
17. 17.50% of 70 =
18. 18.5 + 4 + 3 + 3 + 5 =
19. 19.Check with nines: 24 × 28 = 680. Correct or wrong? (a) wrong (b) correct
20. 20.Best estimate of 58 × 61? (a) 360 (b) 36000 (c) 7200 (d) 3600
21. 21.51² =
22. 22.Check with nines: 592 + 669 = 1255. Correct or wrong? (a) correct (b) wrong
23. 23.5% of 290 =
24. 24.454 + 97 =
25. 25.51² =
26. 26.8 + 6 + 2 + 5 + 5 =
27. 27.434 − 16 =
28. 28.317 + 78 =
29. 29.14 × 11 =
30. 30.15% of 190 =
31. 31.44 × 4 =
32. 32.19 × 18 =
33. 33.Check with nines: 663 + 690 = 1353. Correct or wrong? (a) wrong (b) correct
34. 34.50% of 220 =
35. 35.69² =
36. 36.21² =
37. 37.75 ÷ 25 =
38. 38.89 × 50 =
39. 39.Check with nines: 66 × 64 = 4222. Correct or wrong? (a) correct (b) wrong
40. 40.57 × 50 =

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