Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 952 · 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.Check with nines: 513 + 297 = 810. Correct or wrong? (a) wrong (b) correct
2. 2.3 + 4 + 9 + 1 + 7 =
3. 3.15% of 260 =
4. 4.56 × 8 =
5. 5.16 × 19 =
6. 6.274 − 18 =
7. 7.7 + 3 + 3 + 3 + 7 =
8. 8.Check with nines: 559 + 882 = 1434. Correct or wrong? (a) wrong (b) correct
9. 9.35 × 5 =
10. 10.39² =
11. 11.15 × 5 =
12. 12.14 × 19 =
13. 13.56 × 5 =
14. 14.Best estimate of 19 × 59? (a) 1200 (b) 120 (c) 2400 (d) 12000
15. 15.Best estimate of 39 × 21? (a) 1600 (b) 8000 (c) 80 (d) 800
16. 16.₹18.15 − ₹14.20 =
17. 17.₹55.25 − ₹20.85 =
18. 18.₹54.20 + ₹33.65 =
19. 19.91 + 99 =
20. 20.1 + 9 + 6 + 2 =
21. 21.755 ÷ 5 =
22. 22.18 × 19 =
23. 23.161 + 88 =
24. 24.7 + 3 + 6 + 1 =
25. 25.1000 ÷ 50 =
26. 26.Best estimate of 297 × 7? (a) 21000 (b) 210 (c) 2100 (d) 4200
27. 27.85 + 49 + 15 + 23 =
28. 28.Check with nines: 536 + 536 = 1072. Correct or wrong? (a) correct (b) wrong
29. 29.62 × 50 =
30. 30.₹39.05 − ₹16.85 =
31. 31.80 + 39 =
32. 32.41 × 15 =
33. 33.9 + 3 + 1 + 1 + 4 =
34. 34.10% of 80 =
35. 35.2 + 9 + 8 + 2 + 5 =
36. 36.775 ÷ 25 =
37. 37.14 × 17 =
38. 38.1025 ÷ 25 =
39. 39.3 + 8 + 5 + 7 =
40. 40.29 + 77 =

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