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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 12 · 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. 1.17 × 4 =
  2. 2.474 − 27 =
  3. 3.77 + 84 + 81 + 21 =
  4. 4.4 + 8 + 4 + 6 =
  5. 5.6 + 4 + 4 + 4 =
  6. 6.33 + 52 + 35 + 34 =
  7. 7.363 − 57 =
  8. 8.19 × 8 =
  9. 9.16 × 18 =
  10. 10.82 × 5 =
  11. 11.₹46.75 + ₹21.25 =
  12. 12.266 − 86 =
  13. 13.10% of 220 =
  14. 14.14 × 12 =
  15. 15.950 ÷ 50 =
  16. 16.10 × 15 =
  17. 17.9 + 1 + 8 + 9 =
  18. 18.386 − 36 =
  19. 19.11 × 18 =
  20. 20.Check with nines: 87 × 20 = 1746. Correct or wrong? (a) wrong (b) correct
  21. 21.70 + 24 + 31 + 16 =
  22. 22.497 + 19 =
  23. 23.800 ÷ 25 =
  24. 24.286 − 18 =
  25. 25.₹28.55 + ₹20.35 =
  26. 26.23 + 46 + 31 + 61 =
  27. 27.Check with nines: 61 × 46 = 2805. Correct or wrong? (a) correct (b) wrong
  28. 28.4 + 6 + 6 + 4 =
  29. 29.16 × 12 =
  30. 30.386 + 77 =
  31. 31.5% of 680 =
  32. 32.79 + 13 + 73 + 44 =
  33. 33.223 − 58 =
  34. 34.537 − 97 =
  35. 35.19 × 15 =
  36. 36.10% of 330 =
  37. 37.85 × 5 =
  38. 38.18 × 13 =
  39. 39.32 + 74 + 56 + 82 =
  40. 40.Check with nines: 34 × 53 = 1800. Correct or wrong? (a) correct (b) wrong

Answer key

  1. 68
  2. 447
  3. 263
  4. 22
  5. 18
  6. 154
  7. 306
  8. 152
  9. 288
  10. 410
  11. 68
  12. 180
  13. 22
  14. 168
  15. 19
  16. 150
  17. 27
  18. 350
  19. 198
  20. wrong
  21. 141
  22. 516
  23. 32
  24. 268
  25. 48.9
  26. 161
  27. wrong
  28. 20
  29. 192
  30. 463
  31. 34
  32. 209
  33. 165
  34. 440
  35. 285
  36. 33
  37. 425
  38. 234
  39. 244
  40. wrong

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