Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 924 · 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 + 48 + 36 + 55 =
2. 2.15% of 440 =
3. 3.₹12.40 + ₹26.55 =
4. 4.91² =
5. 5.12 × 12 =
6. 6.217 − 99 =
7. 7.Check with nines: 228 + 429 = 657. Correct or wrong? (a) wrong (b) correct
8. 8.₹75.50 − ₹3.90 =
9. 9.11 × 15 =
10. 10.80 × 4 =
11. 11.55 × 50 =
12. 12.15% of 710 =
13. 13.₹49.05 + ₹7.30 =
14. 14.46 × 8 =
15. 15.28 + 31 + 28 + 64 =
16. 16.1 + 9 + 3 + 4 =
17. 17.1050 ÷ 50 =
18. 18.71² =
19. 19.Best estimate of 28 × 82? (a) 24000 (b) 2400 (c) 240 (d) 4800
20. 20.Check with nines: 42 × 70 = 2941. Correct or wrong? (a) correct (b) wrong
21. 21.3 + 7 + 5 + 1 + 9 =
22. 22.Check with nines: 532 + 914 = 1454. Correct or wrong? (a) wrong (b) correct
23. 23.451 − 99 =
24. 24.44 × 15 =
25. 25.11 × 13 =
26. 26.7 × 15 =
27. 27.124 − 98 =
28. 28.81² =
29. 29.Best estimate of 197 × 8? (a) 1600 (b) 160 (c) 16000 (d) 3200
30. 30.88 × 4 =
31. 31.Check with nines: 600 + 711 = 1311. Correct or wrong? (a) wrong (b) correct
32. 32.190 ÷ 5 =
33. 33.512 − 66 =
34. 34.16 × 15 =
35. 35.299 − 98 =
36. 36.715 ÷ 5 =
37. 37.71² =
38. 38.42 × 5 =
39. 39.₹30.35 − ₹23.35 =
40. 40.₹82.70 + ₹42.70 =

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