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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 614 · 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. 1.19 × 8 =
  2. 2.323 − 87 =
  3. 3.Best estimate of 52 × 29? (a) 1500 (b) 15000 (c) 3000 (d) 150
  4. 4.₹81.90 − ₹21.25 =
  5. 5.37 × 5 =
  6. 6.48 + 49 + 82 + 69 =
  7. 7.104 × 4 =
  8. 8.20% of 540 =
  9. 9.Check with nines: 171 + 836 = 1007. Correct or wrong? (a) wrong (b) correct
  10. 10.12 × 13 =
  11. 11.13 + 25 + 82 + 26 =
  12. 12.59 × 15 =
  13. 13.412 − 59 =
  14. 14.162 − 17 =
  15. 15.125 ÷ 25 =
  16. 16.10% of 300 =
  17. 17.32 × 50 =
  18. 18.175 ÷ 25 =
  19. 19.Check with nines: 421 + 517 = 938. Correct or wrong? (a) correct (b) wrong
  20. 20.10% of 140 =
  21. 21.1500 ÷ 50 =
  22. 22.16 × 12 =
  23. 23.985 ÷ 5 =
  24. 24.204 − 18 =
  25. 25.84 + 48 + 39 + 54 =
  26. 26.273 − 36 =
  27. 27.1% of 600 =
  28. 28.89 × 50 =
  29. 29.950 ÷ 25 =
  30. 30.2 + 4 + 6 + 9 =
  31. 31.171 − 38 =
  32. 32.₹98.05 − ₹6.55 =
  33. 33.48 + 65 + 47 + 14 =
  34. 34.43 × 8 =
  35. 35.10% of 160 =
  36. 36.56 × 4 =
  37. 37.12 × 50 =
  38. 38.12 + 41 + 57 + 32 =
  39. 39.36 × 15 =
  40. 40.29 × 15 =

Answer key

  1. 152
  2. 236
  3. 1500
  4. 60.65
  5. 185
  6. 248
  7. 416
  8. 108
  9. correct
  10. 156
  11. 146
  12. 885
  13. 353
  14. 145
  15. 5
  16. 30
  17. 1600
  18. 7
  19. correct
  20. 14
  21. 30
  22. 192
  23. 197
  24. 186
  25. 225
  26. 237
  27. 6
  28. 4450
  29. 38
  30. 21
  31. 133
  32. 91.5
  33. 174
  34. 344
  35. 16
  36. 224
  37. 600
  38. 142
  39. 540
  40. 435

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