← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 649 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.₹94.90 + ₹48.90 =
  2. 2.315 − 57 =
  3. 3.33 + 39 + 13 + 21 =
  4. 4.41² =
  5. 5.1000 ÷ 25 =
  6. 6.₹42.25 − ₹16.45 =
  7. 7.2 + 1 + 2 + 8 =
  8. 8.10% of 740 =
  9. 9.54 × 8 =
  10. 10.Best estimate of 68 × 79? (a) 56000 (b) 5600 (c) 11200 (d) 560
  11. 11.33 × 15 =
  12. 12.25% of 740 =
  13. 13.Best estimate of 101 × 9? (a) 9000 (b) 90 (c) 900 (d) 1800
  14. 14.425 + 47 =
  15. 15.69² =
  16. 16.275 ÷ 25 =
  17. 17.₹38.60 + ₹21.65 =
  18. 18.429 − 79 =
  19. 19.544 − 47 =
  20. 20.378 − 36 =
  21. 21.₹28.75 − ₹28.20 =
  22. 22.87 × 5 =
  23. 23.52 × 8 =
  24. 24.74 × 8 =
  25. 25.1 + 2 + 5 + 5 + 9 =
  26. 26.21 × 15 =
  27. 27.53 × 4 =
  28. 28.20% of 480 =
  29. 29.Check with nines: 972 + 386 = 1358. Correct or wrong? (a) correct (b) wrong
  30. 30.₹57.85 − ₹30.05 =
  31. 31.40 × 15 =
  32. 32.18 × 16 =
  33. 33.55 + 89 + 40 + 67 =
  34. 34.15% of 500 =
  35. 35.50 + 26 + 85 + 60 =
  36. 36.12 × 5 =
  37. 37.560 ÷ 5 =
  38. 38.₹60.40 − ₹35.85 =
  39. 39.49 + 31 + 18 + 19 =
  40. 40.94 × 5 =

Answer key

  1. 143.8
  2. 258
  3. 106
  4. 1681
  5. 40
  6. 25.8
  7. 13
  8. 74
  9. 432
  10. 5600
  11. 495
  12. 185
  13. 900
  14. 472
  15. 4761
  16. 11
  17. 60.25
  18. 350
  19. 497
  20. 342
  21. 0.55
  22. 435
  23. 416
  24. 592
  25. 22
  26. 315
  27. 212
  28. 96
  29. correct
  30. 27.8
  31. 600
  32. 288
  33. 251
  34. 75
  35. 221
  36. 60
  37. 112
  38. 24.55
  39. 117
  40. 470

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