Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 80 · 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.Check with nines: 18 × 69 = 1246. Correct or wrong? (a) correct (b) wrong
2. 2.73 × 5 =
3. 3.62 × 50 =
4. 4.65 + 27 + 14 + 63 =
5. 5.₹38.95 + ₹40.05 =
6. 6.19 × 12 =
7. 7.11 × 12 =
8. 8.Check with nines: 857 + 274 = 1131. Correct or wrong? (a) wrong (b) correct
9. 9.348 + 18 =
10. 10.35 × 15 =
11. 11.Best estimate of 91 × 32? (a) 2700 (b) 270 (c) 5400 (d) 27000
12. 12.20 + 56 + 85 + 33 =
13. 13.76 + 38 =
14. 14.445 + 67 =
15. 15.44 + 22 + 34 + 11 =
16. 16.4 + 3 + 3 + 7 =
17. 17.39² =
18. 18.17 × 13 =
19. 19.7 + 3 + 8 + 1 =
20. 20.Best estimate of 52 × 19? (a) 2000 (b) 1000 (c) 10000 (d) 100
21. 21.189 − 57 =
22. 22.775 ÷ 5 =
23. 23.83 × 5 =
24. 24.19 × 19 =
25. 25.Check with nines: 689 + 732 = 1419. Correct or wrong? (a) wrong (b) correct
26. 26.62 − 57 =
27. 27.21² =
28. 28.5% of 320 =
29. 29.596 − 86 =
30. 30.39² =
31. 31.126 × 4 =
32. 32.525 ÷ 5 =
33. 33.Best estimate of 59 × 78? (a) 48000 (b) 4800 (c) 480 (d) 9600
34. 34.Check with nines: 56 × 56 = 3141. Correct or wrong? (a) correct (b) wrong
35. 35.14 × 15 =
36. 36.17 × 17 =
37. 37.358 − 66 =
38. 38.₹17.80 − ₹7.50 =
39. 39.Check with nines: 47 × 91 = 4281. Correct or wrong? (a) correct (b) wrong
40. 40.Check with nines: 551 + 933 = 1488. Correct or wrong? (a) correct (b) wrong

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