Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 618 · 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. 1.30 + 18 + 75 + 19 =
2. 2.88 × 4 =
3. 3.89 + 60 + 85 + 31 =
4. 4.3 + 1 + 7 + 9 =
5. 5.11 × 14 =
6. 6.1% of 540 =
7. 7.59 × 5 =
8. 8.30 + 67 =
9. 9.1000 ÷ 50 =
10. 10.89² =
11. 11.70 + 48 =
12. 12.69² =
13. 13.₹60.45 + ₹2.25 =
14. 14.Best estimate of 698 × 3? (a) 21000 (b) 210 (c) 4200 (d) 2100
15. 15.Best estimate of 298 × 5? (a) 15000 (b) 150 (c) 3000 (d) 1500
16. 16.61² =
17. 17.Check with nines: 959 + 557 = 1516. Correct or wrong? (a) correct (b) wrong
18. 18.395 − 37 =
19. 19.95 × 50 =
20. 20.₹59.25 − ₹24.40 =
21. 21.237 + 38 =
22. 22.₹18.65 + ₹42.05 =
23. 23.11 + 56 + 82 + 51 =
24. 24.17 × 15 =
25. 25.16 × 15 =
26. 26.Best estimate of 22 × 68? (a) 14000 (b) 140 (c) 2800 (d) 1400
27. 27.625 ÷ 25 =
28. 28.Check with nines: 556 + 614 = 1170. Correct or wrong? (a) correct (b) wrong
29. 29.₹89.75 + ₹38.55 =
30. 30.15 × 13 =
31. 31.28 × 50 =
32. 32.55 + 37 =
33. 33.11 × 14 =
34. 34.81² =
35. 35.Check with nines: 597 + 375 = 976. Correct or wrong? (a) correct (b) wrong
36. 36.20% of 170 =
37. 37.Best estimate of 199 × 3? (a) 600 (b) 6000 (c) 1200 (d) 60
38. 38.₹43.15 − ₹19.60 =
39. 39.32 × 15 =
40. 40.41² =

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