Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 327 · 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. 1.70 × 5 =
2. 2.₹40.05 + ₹14.80 =
3. 3.88 + 50 + 36 + 11 =
4. 4.₹41.75 + ₹12.75 =
5. 5.Check with nines: 26 × 33 = 858. Correct or wrong? (a) correct (b) wrong
6. 6.Check with nines: 697 + 473 = 1170. Correct or wrong? (a) correct (b) wrong
7. 7.70 ÷ 5 =
8. 8.63 + 79 + 12 + 64 =
9. 9.1250 ÷ 25 =
10. 10.131 − 38 =
11. 11.52 × 15 =
12. 12.37 × 8 =
13. 13.39² =
14. 14.8 + 1 + 6 + 9 =
15. 15.4 + 9 + 9 + 1 + 9 =
16. 16.7 + 3 + 1 + 2 + 7 =
17. 17.125 ÷ 25 =
18. 18.98 − 66 =
19. 19.Best estimate of 398 × 4? (a) 1600 (b) 3200 (c) 160 (d) 16000
20. 20.12 × 17 =
21. 21.54 + 21 + 75 + 45 =
22. 22.30 × 50 =
23. 23.128 × 4 =
24. 24.Best estimate of 38 × 22? (a) 1600 (b) 800 (c) 80 (d) 8000
25. 25.19 + 40 + 89 + 15 =
26. 26.20% of 320 =
27. 27.39 × 15 =
28. 28.Check with nines: 20 × 71 = 1412. Correct or wrong? (a) wrong (b) correct
29. 29.1150 ÷ 25 =
30. 30.52 × 15 =
31. 31.₹55.30 − ₹48.45 =
32. 32.12 × 19 =
33. 33.110 + 98 =
34. 34.44 × 8 =
35. 35.₹40.35 − ₹35.70 =
36. 36.89² =
37. 37.27 × 4 =
38. 38.Check with nines: 439 + 126 = 565. Correct or wrong? (a) wrong (b) correct
39. 39.343 + 17 =
40. 40.21 + 61 + 56 + 63 =

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