Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 941 · 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. 1.18 × 15 =
2. 2.21 + 64 + 40 + 52 =
3. 3.Check with nines: 298 + 223 = 521. Correct or wrong? (a) wrong (b) correct
4. 4.9 + 8 + 3 + 2 + 1 =
5. 5.650 ÷ 50 =
6. 6.375 − 48 =
7. 7.755 ÷ 5 =
8. 8.89² =
9. 9.20 + 38 + 34 + 32 =
10. 10.Best estimate of 62 × 48? (a) 6000 (b) 300 (c) 30000 (d) 3000
11. 11.491 + 59 =
12. 12.117 + 27 =
13. 13.62 × 15 =
14. 14.31 × 8 =
15. 15.7 + 3 + 7 + 1 =
16. 16.500 ÷ 50 =
17. 17.₹34.85 − ₹7.50 =
18. 18.20% of 160 =
19. 19.33 × 8 =
20. 20.30 × 8 =
21. 21.14 × 15 =
22. 22.65 × 4 =
23. 23.770 ÷ 5 =
24. 24.₹33.05 + ₹39.65 =
25. 25.Check with nines: 30 × 40 = 1200. Correct or wrong? (a) wrong (b) correct
26. 26.Check with nines: 297 + 666 = 963. Correct or wrong? (a) correct (b) wrong
27. 27.19 × 15 =
28. 28.Best estimate of 31 × 41? (a) 2400 (b) 1200 (c) 12000 (d) 120
29. 29.600 ÷ 5 =
30. 30.82 × 5 =
31. 31.₹45.95 + ₹14.15 =
32. 32.29 + 51 + 45 + 20 =
33. 33.19² =
34. 34.1950 ÷ 50 =
35. 35.116 − 46 =
36. 36.387 + 18 =
37. 37.89² =
38. 38.73 × 8 =
39. 39.59² =
40. 40.₹88.80 − ₹4.40 =

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