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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 706 · 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. 1.2 + 1 + 9 + 3 =
  2. 2.419 + 89 =
  3. 3.21 × 5 =
  4. 4.39² =
  5. 5.325 + 37 =
  6. 6.49 × 5 =
  7. 7.322 + 37 =
  8. 8.13 × 17 =
  9. 9.42 × 5 =
  10. 10.39² =
  11. 11.54 × 4 =
  12. 12.36 × 15 =
  13. 13.₹46.20 − ₹45.25 =
  14. 14.49² =
  15. 15.49 × 15 =
  16. 16.40 × 5 =
  17. 17.Check with nines: 998 + 639 = 1637. Correct or wrong? (a) wrong (b) correct
  18. 18.37 + 37 + 74 + 53 =
  19. 19.1% of 590 =
  20. 20.₹42.30 + ₹24.95 =
  21. 21.460 ÷ 5 =
  22. 22.24 + 41 + 16 + 64 =
  23. 23.17 × 12 =
  24. 24.₹68.65 − ₹38.60 =
  25. 25.156 − 77 =
  26. 26.425 ÷ 5 =
  27. 27.Check with nines: 866 + 290 = 1156. Correct or wrong? (a) wrong (b) correct
  28. 28.57 × 15 =
  29. 29.₹32.70 + ₹6.70 =
  30. 30.207 − 89 =
  31. 31.₹39.20 − ₹13.45 =
  32. 32.25 × 50 =
  33. 33.₹78.25 − ₹30.30 =
  34. 34.76 × 4 =
  35. 35.290 ÷ 5 =
  36. 36.6 + 4 + 1 + 3 =
  37. 37.91² =
  38. 38.₹86.20 + ₹45.50 =
  39. 39.3 + 9 + 2 + 7 + 1 =
  40. 40.46 + 16 + 77 + 27 =

Answer key

  1. 15
  2. 508
  3. 105
  4. 1521
  5. 362
  6. 245
  7. 359
  8. 221
  9. 210
  10. 1521
  11. 216
  12. 540
  13. 0.95
  14. 2401
  15. 735
  16. 200
  17. correct
  18. 201
  19. 5.9
  20. 67.25
  21. 92
  22. 145
  23. 204
  24. 30.05
  25. 79
  26. 85
  27. correct
  28. 855
  29. 39.4
  30. 118
  31. 25.75
  32. 1250
  33. 47.95
  34. 304
  35. 58
  36. 14
  37. 8281
  38. 131.7
  39. 22
  40. 166

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