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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 922 · 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 × 14 =
  2. 2.41² =
  3. 3.13 × 17 =
  4. 4.₹56.30 + ₹25.70 =
  5. 5.51 × 4 =
  6. 6.54 × 5 =
  7. 7.38 × 15 =
  8. 8.3 + 7 + 5 + 8 + 6 =
  9. 9.1250 ÷ 25 =
  10. 10.264 − 79 =
  11. 11.61 + 45 + 37 + 80 =
  12. 12.₹28.10 + ₹41.10 =
  13. 13.12 × 12 =
  14. 14.25% of 160 =
  15. 15.15% of 710 =
  16. 16.₹53.25 + ₹42.85 =
  17. 17.26 × 15 =
  18. 18.13 × 15 =
  19. 19.127 × 4 =
  20. 20.53 × 4 =
  21. 21.40 × 50 =
  22. 22.1350 ÷ 25 =
  23. 23.37 × 8 =
  24. 24.41 × 15 =
  25. 25.77 + 12 + 15 + 87 =
  26. 26.4 + 5 + 2 + 5 + 9 =
  27. 27.120 ÷ 5 =
  28. 28.4 + 6 + 9 + 2 + 4 =
  29. 29.₹5.90 + ₹36.80 =
  30. 30.Check with nines: 29 × 43 = 1248. Correct or wrong? (a) wrong (b) correct
  31. 31.11 × 16 =
  32. 32.45 × 15 =
  33. 33.80 × 50 =
  34. 34.Check with nines: 20 × 33 = 659. Correct or wrong? (a) correct (b) wrong
  35. 35.49² =
  36. 36.4 + 9 + 4 + 1 + 5 =
  37. 37.Check with nines: 19 × 79 = 1498. Correct or wrong? (a) correct (b) wrong
  38. 38.8 + 9 + 2 + 7 + 2 =
  39. 39.Best estimate of 39 × 22? (a) 8000 (b) 1600 (c) 80 (d) 800
  40. 40.293 − 36 =

Answer key

  1. 266
  2. 1681
  3. 221
  4. 82
  5. 204
  6. 270
  7. 570
  8. 29
  9. 50
  10. 185
  11. 223
  12. 69.2
  13. 144
  14. 40
  15. 106.5
  16. 96.1
  17. 390
  18. 195
  19. 508
  20. 212
  21. 2000
  22. 54
  23. 296
  24. 615
  25. 191
  26. 25
  27. 24
  28. 25
  29. 42.7
  30. wrong
  31. 176
  32. 675
  33. 4000
  34. wrong
  35. 2401
  36. 23
  37. wrong
  38. 28
  39. 800
  40. 257

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