Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 481 · 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. 1.93 × 5 =
2. 2.19 × 14 =
3. 3.43 × 4 =
4. 4.₹87.65 + ₹31.05 =
5. 5.16 × 18 =
6. 6.Check with nines: 54 × 59 = 3186. Correct or wrong? (a) wrong (b) correct
7. 7.83 × 50 =
8. 8.43 × 8 =
9. 9.250 ÷ 25 =
10. 10.14 × 8 =
11. 11.524 − 76 =
12. 12.₹67.80 − ₹41.25 =
13. 13.970 ÷ 5 =
14. 14.12 × 11 =
15. 15.800 ÷ 50 =
16. 16.₹78.65 − ₹22.45 =
17. 17.34 × 5 =
18. 18.153 × 4 =
19. 19.5 + 2 + 3 + 8 + 1 =
20. 20.7 + 4 + 6 + 1 + 9 =
21. 21.9 + 8 + 6 + 4 + 2 =
22. 22.50% of 730 =
23. 23.105 + 88 =
24. 24.5 × 15 =
25. 25.63 + 98 =
26. 26.19 × 50 =
27. 27.₹22.05 + ₹21.20 =
28. 28.Check with nines: 82 × 88 = 7216. Correct or wrong? (a) correct (b) wrong
29. 29.43 × 8 =
30. 30.Check with nines: 95 × 20 = 1900. Correct or wrong? (a) wrong (b) correct
31. 31.10 × 15 =
32. 32.367 − 98 =
33. 33.52 × 15 =
34. 34.₹27.45 + ₹39.70 =
35. 35.91² =
36. 36.490 + 67 =
37. 37.59 × 15 =
38. 38.Best estimate of 599 × 6? (a) 360 (b) 36000 (c) 7200 (d) 3600
39. 39.Best estimate of 402 × 5? (a) 4000 (b) 20000 (c) 2000 (d) 200
40. 40.69² =

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