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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 831 · 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. 1.159 − 56 =
  2. 2.12 × 11 =
  3. 3.1050 ÷ 50 =
  4. 4.308 + 87 =
  5. 5.Best estimate of 303 × 3? (a) 9000 (b) 90 (c) 900 (d) 1800
  6. 6.353 + 27 =
  7. 7.8 + 4 + 9 + 1 =
  8. 8.17 + 47 + 78 + 20 =
  9. 9.16 × 4 =
  10. 10.70 × 50 =
  11. 11.41² =
  12. 12.7 + 8 + 5 + 2 =
  13. 13.84 + 23 + 74 + 15 =
  14. 14.5 + 9 + 5 + 6 + 5 =
  15. 15.418 + 19 =
  16. 16.5% of 370 =
  17. 17.11 + 69 + 65 + 65 =
  18. 18.3 + 4 + 2 + 7 + 3 =
  19. 19.785 ÷ 5 =
  20. 20.39 × 15 =
  21. 21.49² =
  22. 22.59² =
  23. 23.591 − 47 =
  24. 24.₹58.30 − ₹3.75 =
  25. 25.4 + 7 + 2 + 5 + 6 =
  26. 26.355 + 37 =
  27. 27.31² =
  28. 28.Check with nines: 59 × 93 = 5495. Correct or wrong? (a) wrong (b) correct
  29. 29.19² =
  30. 30.31² =
  31. 31.700 ÷ 50 =
  32. 32.16 × 15 =
  33. 33.Best estimate of 297 × 4? (a) 12000 (b) 120 (c) 1200 (d) 2400
  34. 34.₹80.50 + ₹5.10 =
  35. 35.351 − 19 =
  36. 36.57 × 8 =
  37. 37.875 ÷ 25 =
  38. 38.15% of 430 =
  39. 39.50% of 100 =
  40. 40.16 × 19 =

Answer key

  1. 103
  2. 132
  3. 21
  4. 395
  5. 900
  6. 380
  7. 22
  8. 162
  9. 64
  10. 3500
  11. 1681
  12. 22
  13. 196
  14. 30
  15. 437
  16. 18.5
  17. 210
  18. 19
  19. 157
  20. 585
  21. 2401
  22. 3481
  23. 544
  24. 54.55
  25. 24
  26. 392
  27. 961
  28. wrong
  29. 361
  30. 961
  31. 14
  32. 240
  33. 1200
  34. 85.6
  35. 332
  36. 456
  37. 35
  38. 64.5
  39. 50
  40. 304

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