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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 500 · 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. 1.97 × 50 =
  2. 2.49 × 4 =
  3. 3.23 × 50 =
  4. 4.1550 ÷ 50 =
  5. 5.268 + 58 =
  6. 6.530 ÷ 5 =
  7. 7.₹45.50 − ₹30.90 =
  8. 8.32 + 77 =
  9. 9.291 + 79 =
  10. 10.3 + 6 + 9 + 1 =
  11. 11.Best estimate of 301 × 3? (a) 90 (b) 900 (c) 1800 (d) 9000
  12. 12.56 × 4 =
  13. 13.₹26.10 + ₹27.45 =
  14. 14.190 ÷ 5 =
  15. 15.₹91.15 − ₹24.55 =
  16. 16.₹50.70 − ₹4.85 =
  17. 17.36 + 28 + 83 + 69 =
  18. 18.9 + 1 + 7 + 4 =
  19. 19.9 + 5 + 3 + 7 =
  20. 20.203 − 37 =
  21. 21.161 − 79 =
  22. 22.57 × 15 =
  23. 23.4 + 6 + 2 + 4 + 9 =
  24. 24.201 + 67 =
  25. 25.484 − 67 =
  26. 26.89² =
  27. 27.31² =
  28. 28.48 × 5 =
  29. 29.49² =
  30. 30.13 × 16 =
  31. 31.29² =
  32. 32.226 − 59 =
  33. 33.₹56.15 + ₹19.80 =
  34. 34.78 + 82 + 28 + 43 =
  35. 35.₹76.30 + ₹44.65 =
  36. 36.71 × 50 =
  37. 37.50% of 90 =
  38. 38.11 + 51 + 64 + 66 =
  39. 39.296 + 39 =
  40. 40.89² =

Answer key

  1. 4850
  2. 196
  3. 1150
  4. 31
  5. 326
  6. 106
  7. 14.6
  8. 109
  9. 370
  10. 19
  11. 900
  12. 224
  13. 53.55
  14. 38
  15. 66.6
  16. 45.85
  17. 216
  18. 21
  19. 24
  20. 166
  21. 82
  22. 855
  23. 25
  24. 268
  25. 417
  26. 7921
  27. 961
  28. 240
  29. 2401
  30. 208
  31. 841
  32. 167
  33. 75.95
  34. 231
  35. 120.95
  36. 3550
  37. 45
  38. 192
  39. 335
  40. 7921

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