Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 365 · 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.₹42.35 − ₹8.35 =
2. 2.Check with nines: 62 × 54 = 3349. Correct or wrong? (a) correct (b) wrong
3. 3.18 + 13 + 18 + 41 =
4. 4.202 + 98 =
5. 5.5 + 6 + 9 + 5 + 4 =
6. 6.97 × 50 =
7. 7.69² =
8. 8.1% of 520 =
9. 9.74 + 24 + 48 + 27 =
10. 10.28 × 50 =
11. 11.11 × 17 =
12. 12.97 × 50 =
13. 13.69 × 5 =
14. 14.199 + 59 =
15. 15.23 × 50 =
16. 16.Best estimate of 38 × 79? (a) 32000 (b) 6400 (c) 320 (d) 3200
17. 17.51² =
18. 18.Check with nines: 78 × 16 = 1248. Correct or wrong? (a) correct (b) wrong
19. 19.19 × 14 =
20. 20.450 ÷ 25 =
21. 21.Best estimate of 78 × 62? (a) 48000 (b) 4800 (c) 9600 (d) 480
22. 22.260 + 17 =
23. 23.372 + 37 =
24. 24.225 ÷ 25 =
25. 25.Best estimate of 202 × 3? (a) 1200 (b) 600 (c) 6000 (d) 60
26. 26.725 ÷ 25 =
27. 27.Best estimate of 502 × 6? (a) 6000 (b) 3000 (c) 300 (d) 30000
28. 28.14 × 15 =
29. 29.132 × 4 =
30. 30.9 + 1 + 3 + 3 =
31. 31.58 × 15 =
32. 32.21² =
33. 33.29 + 59 + 24 + 12 =
34. 34.19² =
35. 35.₹10.75 + ₹16.05 =
36. 36.7 + 6 + 1 + 3 =
37. 37.148 − 69 =
38. 38.38 × 15 =
39. 39.140 + 98 =
40. 40.9 + 2 + 1 + 8 + 8 =

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