Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 78 · 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. 1.7 × 15 =
2. 2.334 − 68 =
3. 3.₹91.90 + ₹27.15 =
4. 4.550 ÷ 25 =
5. 5.49² =
6. 6.380 ÷ 5 =
7. 7.123 × 4 =
8. 8.17 × 12 =
9. 9.10 × 15 =
10. 10.533 − 78 =
11. 11.72 × 8 =
12. 12.₹79.90 + ₹22.75 =
13. 13.₹9.85 − ₹7.25 =
14. 14.Best estimate of 22 × 22? (a) 800 (b) 40 (c) 400 (d) 4000
15. 15.20% of 540 =
16. 16.465 − 19 =
17. 17.16 × 11 =
18. 18.145 + 29 =
19. 19.60 + 71 + 23 + 16 =
20. 20.81² =
21. 21.21 × 15 =
22. 22.35 + 49 =
23. 23.450 ÷ 25 =
24. 24.31 × 50 =
25. 25.53 × 50 =
26. 26.725 ÷ 25 =
27. 27.84 + 12 + 55 + 45 =
28. 28.Best estimate of 798 × 7? (a) 56000 (b) 560 (c) 5600 (d) 11200
29. 29.Check with nines: 79 × 18 = 1417. Correct or wrong? (a) wrong (b) correct
30. 30.50 + 71 + 51 + 63 =
31. 31.126 × 4 =
32. 32.300 + 87 =
33. 33.21 × 15 =
34. 34.41² =
35. 35.2 + 2 + 2 + 8 =
36. 36.61² =
37. 37.10% of 760 =
38. 38.41² =
39. 39.₹55.10 − ₹46.50 =
40. 40.59² =

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