← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 928 · 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. 1.15% of 710 =
  2. 2.Check with nines: 22 × 77 = 1694. Correct or wrong? (a) correct (b) wrong
  3. 3.19 × 15 =
  4. 4.1500 ÷ 25 =
  5. 5.₹11.55 + ₹5.95 =
  6. 6.14 × 11 =
  7. 7.21² =
  8. 8.₹45.75 + ₹20.65 =
  9. 9.16 × 11 =
  10. 10.159 − 76 =
  11. 11.Best estimate of 402 × 7? (a) 28000 (b) 5600 (c) 280 (d) 2800
  12. 12.499 + 99 =
  13. 13.17 × 11 =
  14. 14.Best estimate of 21 × 18? (a) 4000 (b) 800 (c) 40 (d) 400
  15. 15.6 + 3 + 7 + 3 =
  16. 16.20% of 470 =
  17. 17.Best estimate of 98 × 6? (a) 1200 (b) 600 (c) 60 (d) 6000
  18. 18.22 × 15 =
  19. 19.59² =
  20. 20.498 − 26 =
  21. 21.5% of 130 =
  22. 22.18 × 13 =
  23. 23.800 ÷ 5 =
  24. 24.187 − 96 =
  25. 25.82 + 37 + 15 + 25 =
  26. 26.₹90.35 − ₹48.45 =
  27. 27.67 × 8 =
  28. 28.377 + 69 =
  29. 29.5% of 230 =
  30. 30.7 + 6 + 3 + 3 + 6 =
  31. 31.66 × 8 =
  32. 32.3 + 8 + 7 + 5 =
  33. 33.33 × 5 =
  34. 34.67 − 29 =
  35. 35.31² =
  36. 36.Check with nines: 171 + 166 = 338. Correct or wrong? (a) wrong (b) correct
  37. 37.1600 ÷ 50 =
  38. 38.38 × 15 =
  39. 39.10% of 880 =
  40. 40.55 × 5 =

Answer key

  1. 106.5
  2. correct
  3. 285
  4. 60
  5. 17.5
  6. 154
  7. 441
  8. 66.4
  9. 176
  10. 83
  11. 2800
  12. 598
  13. 187
  14. 400
  15. 19
  16. 94
  17. 600
  18. 330
  19. 3481
  20. 472
  21. 6.5
  22. 234
  23. 160
  24. 91
  25. 159
  26. 41.9
  27. 536
  28. 446
  29. 11.5
  30. 25
  31. 528
  32. 23
  33. 165
  34. 38
  35. 961
  36. wrong
  37. 32
  38. 570
  39. 88
  40. 275

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