Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 538 · 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. 1.166 + 79 =
2. 2.115 ÷ 5 =
3. 3.284 − 66 =
4. 4.89² =
5. 5.88 + 76 + 23 + 74 =
6. 6.17 × 15 =
7. 7.Best estimate of 42 × 19? (a) 800 (b) 8000 (c) 1600 (d) 80
8. 8.Best estimate of 28 × 59? (a) 1800 (b) 18000 (c) 3600 (d) 180
9. 9.₹24.95 − ₹6.75 =
10. 10.17 × 5 =
11. 11.284 + 48 =
12. 12.800 ÷ 50 =
13. 13.1 + 1 + 8 + 2 + 7 =
14. 14.50% of 730 =
15. 15.81² =
16. 16.51 × 15 =
17. 17.15 × 13 =
18. 18.15 × 11 =
19. 19.Best estimate of 598 × 5? (a) 30000 (b) 6000 (c) 300 (d) 3000
20. 20.₹14.80 − ₹10.20 =
21. 21.78 + 46 + 52 + 12 =
22. 22.Check with nines: 13 × 56 = 728. Correct or wrong? (a) correct (b) wrong
23. 23.22 × 8 =
24. 24.14 × 18 =
25. 25.Best estimate of 98 × 6? (a) 60 (b) 6000 (c) 1200 (d) 600
26. 26.₹22.15 + ₹22.95 =
27. 27.1 + 9 + 1 + 1 + 1 =
28. 28.86 + 23 + 67 + 84 =
29. 29.560 − 79 =
30. 30.66 × 50 =
31. 31.65 + 36 + 16 + 80 =
32. 32.429 + 18 =
33. 33.401 − 87 =
34. 34.7 + 8 + 7 + 6 + 2 =
35. 35.7 + 5 + 1 + 3 + 6 =
36. 36.Check with nines: 86 × 28 = 2408. Correct or wrong? (a) correct (b) wrong
37. 37.₹33.60 − ₹23.45 =
38. 38.207 − 37 =
39. 39.28 × 15 =
40. 40.Best estimate of 397 × 7? (a) 28000 (b) 280 (c) 5600 (d) 2800

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths