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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 354 · 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. 1.400 ÷ 50 =
  2. 2.108 − 67 =
  3. 3.19 × 19 =
  4. 4.Check with nines: 815 + 633 = 1449. Correct or wrong? (a) correct (b) wrong
  5. 5.16 × 15 =
  6. 6.15% of 800 =
  7. 7.8 × 15 =
  8. 8.1275 ÷ 25 =
  9. 9.20 × 50 =
  10. 10.59 + 38 + 78 + 42 =
  11. 11.5% of 470 =
  12. 12.29 × 8 =
  13. 13.₹90.55 + ₹32.45 =
  14. 14.460 ÷ 5 =
  15. 15.6 × 15 =
  16. 16.19 + 62 + 25 + 38 =
  17. 17.₹22.50 + ₹23.90 =
  18. 18.250 ÷ 25 =
  19. 19.5 + 5 + 5 + 3 =
  20. 20.₹21.80 + ₹9.10 =
  21. 21.68 × 8 =
  22. 22.31² =
  23. 23.312 + 48 =
  24. 24.16 + 27 + 36 + 56 =
  25. 25.8 + 9 + 2 + 3 =
  26. 26.377 + 97 =
  27. 27.120 ÷ 5 =
  28. 28.450 ÷ 50 =
  29. 29.137 + 78 =
  30. 30.13 × 15 =
  31. 31.13 × 19 =
  32. 32.39 + 68 + 64 + 11 =
  33. 33.29² =
  34. 34.₹37.85 − ₹22.10 =
  35. 35.₹6.15 + ₹40.95 =
  36. 36.234 − 86 =
  37. 37.10% of 310 =
  38. 38.109 × 4 =
  39. 39.28 × 15 =
  40. 40.69 + 39 =

Answer key

  1. 8
  2. 41
  3. 361
  4. wrong
  5. 240
  6. 120
  7. 120
  8. 51
  9. 1000
  10. 217
  11. 23.5
  12. 232
  13. 123
  14. 92
  15. 90
  16. 144
  17. 46.4
  18. 10
  19. 18
  20. 30.9
  21. 544
  22. 961
  23. 360
  24. 135
  25. 22
  26. 474
  27. 24
  28. 9
  29. 215
  30. 195
  31. 247
  32. 182
  33. 841
  34. 15.75
  35. 47.1
  36. 148
  37. 31
  38. 436
  39. 420
  40. 108

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