Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 180 · 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. 1.14 × 15 =
2. 2.Best estimate of 32 × 42? (a) 120 (b) 12000 (c) 2400 (d) 1200
3. 3.131 − 26 =
4. 4.₹67.95 − ₹44.15 =
5. 5.14 × 11 =
6. 6.63 × 15 =
7. 7.509 − 99 =
8. 8.62 × 15 =
9. 9.4 + 6 + 6 + 4 =
10. 10.49 × 8 =
11. 11.Check with nines: 99 × 67 = 6633. Correct or wrong? (a) wrong (b) correct
12. 12.₹53.20 + ₹49.45 =
13. 13.5% of 30 =
14. 14.350 ÷ 25 =
15. 15.113 − 57 =
16. 16.Check with nines: 41 × 78 = 3198. Correct or wrong? (a) correct (b) wrong
17. 17.Best estimate of 203 × 8? (a) 160 (b) 1600 (c) 16000 (d) 3200
18. 18.14 × 15 =
19. 19.19² =
20. 20.53 × 15 =
21. 21.8 + 5 + 2 + 2 + 8 =
22. 22.550 ÷ 50 =
23. 23.Check with nines: 377 + 346 = 723. Correct or wrong? (a) wrong (b) correct
24. 24.87 − 58 =
25. 25.800 ÷ 50 =
26. 26.Best estimate of 297 × 7? (a) 210 (b) 4200 (c) 2100 (d) 21000
27. 27.1250 ÷ 50 =
28. 28.Check with nines: 28 × 85 = 2388. Correct or wrong? (a) correct (b) wrong
29. 29.Check with nines: 43 × 84 = 3612. Correct or wrong? (a) wrong (b) correct
30. 30.81² =
31. 31.39² =
32. 32.370 + 39 =
33. 33.₹34.05 + ₹44.60 =
34. 34.32 × 50 =
35. 35.Best estimate of 81 × 29? (a) 2400 (b) 24000 (c) 240 (d) 4800
36. 36.1% of 60 =
37. 37.Check with nines: 538 + 929 = 1466. Correct or wrong? (a) wrong (b) correct
38. 38.Check with nines: 913 + 367 = 1280. Correct or wrong? (a) wrong (b) correct
39. 39.137 + 19 =
40. 40.15 + 26 + 84 + 61 =

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