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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 312 · 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. 1.150 × 4 =
  2. 2.38 × 50 =
  3. 3.7 + 1 + 9 + 9 + 8 =
  4. 4.157 + 77 =
  5. 5.500 ÷ 50 =
  6. 6.26 × 5 =
  7. 7.203 − 29 =
  8. 8.115 × 4 =
  9. 9.₹92.20 + ₹5.50 =
  10. 10.7 + 1 + 3 + 8 + 9 =
  11. 11.Check with nines: 637 + 942 = 1576. Correct or wrong? (a) wrong (b) correct
  12. 12.54 + 16 + 53 + 55 =
  13. 13.64 + 82 + 12 + 43 =
  14. 14.61² =
  15. 15.62 + 63 + 33 + 31 =
  16. 16.₹51.85 + ₹5.15 =
  17. 17.Check with nines: 656 + 494 = 1156. Correct or wrong? (a) correct (b) wrong
  18. 18.50% of 490 =
  19. 19.450 − 89 =
  20. 20.15 × 19 =
  21. 21.383 + 19 =
  22. 22.₹30.50 − ₹18.75 =
  23. 23.290 ÷ 5 =
  24. 24.48 × 4 =
  25. 25.13 + 61 + 34 + 70 =
  26. 26.1900 ÷ 50 =
  27. 27.1 + 5 + 4 + 6 + 4 =
  28. 28.10% of 300 =
  29. 29.10% of 20 =
  30. 30.53 + 70 + 19 + 60 =
  31. 31.Check with nines: 737 + 162 = 899. Correct or wrong? (a) correct (b) wrong
  32. 32.24 × 50 =
  33. 33.12 × 13 =
  34. 34.1 + 9 + 1 + 1 =
  35. 35.95 + 39 =
  36. 36.₹71.30 − ₹5.50 =
  37. 37.61 × 5 =
  38. 38.48 × 5 =
  39. 39.23 × 15 =
  40. 40.15 × 15 =

Answer key

  1. 600
  2. 1900
  3. 34
  4. 234
  5. 10
  6. 130
  7. 174
  8. 460
  9. 97.7
  10. 28
  11. wrong
  12. 178
  13. 201
  14. 3721
  15. 189
  16. 57
  17. wrong
  18. 245
  19. 361
  20. 285
  21. 402
  22. 11.75
  23. 58
  24. 192
  25. 178
  26. 38
  27. 20
  28. 30
  29. 2
  30. 202
  31. correct
  32. 1200
  33. 156
  34. 12
  35. 134
  36. 65.8
  37. 305
  38. 240
  39. 345
  40. 225

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