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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 1 · 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. 1.54 + 34 + 32 + 82 =
  2. 2.6 + 1 + 5 + 9 =
  3. 3.30 × 8 =
  4. 4.32 × 15 =
  5. 5.19² =
  6. 6.237 + 77 =
  7. 7.14 × 5 =
  8. 8.3 + 4 + 2 + 2 + 6 =
  9. 9.18 + 38 + 21 + 87 =
  10. 10.274 − 88 =
  11. 11.₹22.60 − ₹22.15 =
  12. 12.35 + 16 + 70 + 27 =
  13. 13.71² =
  14. 14.15% of 430 =
  15. 15.57 × 5 =
  16. 16.66 + 18 =
  17. 17.66 × 5 =
  18. 18.700 ÷ 50 =
  19. 19.₹23.85 + ₹14.55 =
  20. 20.43 × 5 =
  21. 21.246 + 58 =
  22. 22.27 + 88 + 89 + 63 =
  23. 23.Check with nines: 955 + 485 = 1443. Correct or wrong? (a) wrong (b) correct
  24. 24.1 + 8 + 6 + 7 + 2 =
  25. 25.50% of 390 =
  26. 26.20 × 15 =
  27. 27.Check with nines: 689 + 787 = 1476. Correct or wrong? (a) correct (b) wrong
  28. 28.13 + 50 + 20 + 66 =
  29. 29.₹58.45 − ₹44.05 =
  30. 30.439 − 36 =
  31. 31.478 + 78 =
  32. 32.11 × 15 =
  33. 33.₹24.70 − ₹14.30 =
  34. 34.18 × 14 =
  35. 35.482 + 17 =
  36. 36.2 + 8 + 6 + 8 =
  37. 37.27 × 50 =
  38. 38.Check with nines: 63 × 12 = 756. Correct or wrong? (a) correct (b) wrong
  39. 39.1% of 550 =
  40. 40.1 + 7 + 9 + 6 =

Answer key

  1. 202
  2. 21
  3. 240
  4. 480
  5. 361
  6. 314
  7. 70
  8. 17
  9. 164
  10. 186
  11. 0.45
  12. 148
  13. 5041
  14. 64.5
  15. 285
  16. 84
  17. 330
  18. 14
  19. 38.4
  20. 215
  21. 304
  22. 267
  23. wrong
  24. 24
  25. 195
  26. 300
  27. correct
  28. 149
  29. 14.4
  30. 403
  31. 556
  32. 165
  33. 10.4
  34. 252
  35. 499
  36. 24
  37. 1350
  38. correct
  39. 5.5
  40. 23

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