Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 163 · 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. 1.3 + 2 + 2 + 8 =
2. 2.25% of 80 =
3. 3.8 + 1 + 3 + 7 =
4. 4.Best estimate of 798 × 4? (a) 3200 (b) 6400 (c) 320 (d) 32000
5. 5.493 + 77 =
6. 6.30 × 50 =
7. 7.453 − 27 =
8. 8.500 ÷ 5 =
9. 9.36 + 78 =
10. 10.329 − 26 =
11. 11.55 + 77 + 31 + 58 =
12. 12.760 ÷ 5 =
13. 13.50% of 170 =
14. 14.47 × 15 =
15. 15.171 + 48 =
16. 16.39² =
17. 17.Check with nines: 86 × 56 = 4816. Correct or wrong? (a) correct (b) wrong
18. 18.332 + 97 =
19. 19.₹24.60 + ₹36.95 =
20. 20.16 + 84 + 27 + 16 =
21. 21.20% of 800 =
22. 22.₹45.20 − ₹13.05 =
23. 23.22 + 14 + 43 + 55 =
24. 24.51² =
25. 25.39 × 15 =
26. 26.13 × 11 =
27. 27.36 × 8 =
28. 28.90 × 4 =
29. 29.Best estimate of 803 × 9? (a) 72000 (b) 720 (c) 14400 (d) 7200
30. 30.Check with nines: 406 + 919 = 1324. Correct or wrong? (a) correct (b) wrong
31. 31.₹40.70 − ₹28.45 =
32. 32.1250 ÷ 25 =
33. 33.48 × 15 =
34. 34.28 + 77 + 11 + 45 =
35. 35.Best estimate of 31 × 39? (a) 12000 (b) 120 (c) 2400 (d) 1200
36. 36.11 × 15 =
37. 37.Check with nines: 14 × 92 = 1282. Correct or wrong? (a) wrong (b) correct
38. 38.Check with nines: 38 × 24 = 920. Correct or wrong? (a) correct (b) wrong
39. 39.14 × 15 =
40. 40.Best estimate of 497 × 8? (a) 40000 (b) 8000 (c) 400 (d) 4000

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