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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 784 · 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. 1.42 × 50 =
  2. 2.1350 ÷ 50 =
  3. 3.12 × 15 =
  4. 4.48 × 50 =
  5. 5.580 ÷ 5 =
  6. 6.675 ÷ 25 =
  7. 7.83 + 56 + 50 + 32 =
  8. 8.20% of 230 =
  9. 9.492 − 76 =
  10. 10.Check with nines: 254 + 924 = 1184. Correct or wrong? (a) correct (b) wrong
  11. 11.790 ÷ 5 =
  12. 12.133 − 29 =
  13. 13.Check with nines: 94 × 51 = 4793. Correct or wrong? (a) wrong (b) correct
  14. 14.405 + 47 =
  15. 15.36 × 5 =
  16. 16.385 + 18 =
  17. 17.10% of 500 =
  18. 18.605 ÷ 5 =
  19. 19.₹49.30 + ₹4.80 =
  20. 20.7 + 1 + 3 + 9 =
  21. 21.₹98.65 − ₹4.15 =
  22. 22.5 × 15 =
  23. 23.7 + 4 + 6 + 4 =
  24. 24.₹71.85 − ₹48.95 =
  25. 25.41² =
  26. 26.61 × 15 =
  27. 27.24 × 15 =
  28. 28.307 − 96 =
  29. 29.10% of 70 =
  30. 30.₹27.15 + ₹42.95 =
  31. 31.59² =
  32. 32.79 + 32 + 79 + 12 =
  33. 33.168 + 18 =
  34. 34.Check with nines: 93 × 65 = 6045. Correct or wrong? (a) wrong (b) correct
  35. 35.53 × 15 =
  36. 36.₹42.75 − ₹38.10 =
  37. 37.102 − 26 =
  38. 38.90 × 5 =
  39. 39.126 − 16 =
  40. 40.36 + 74 + 46 + 46 =

Answer key

  1. 2100
  2. 27
  3. 180
  4. 2400
  5. 116
  6. 27
  7. 221
  8. 46
  9. 416
  10. wrong
  11. 158
  12. 104
  13. wrong
  14. 452
  15. 180
  16. 403
  17. 50
  18. 121
  19. 54.1
  20. 20
  21. 94.5
  22. 75
  23. 21
  24. 22.9
  25. 1681
  26. 915
  27. 360
  28. 211
  29. 7
  30. 70.1
  31. 3481
  32. 202
  33. 186
  34. correct
  35. 795
  36. 4.65
  37. 76
  38. 450
  39. 110
  40. 202

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