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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 897 · 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. 1.50% of 120 =
  2. 2.Best estimate of 19 × 31? (a) 1200 (b) 60 (c) 6000 (d) 600
  3. 3.228 + 59 =
  4. 4.223 − 59 =
  5. 5.Best estimate of 82 × 39? (a) 320 (b) 6400 (c) 32000 (d) 3200
  6. 6.237 + 87 =
  7. 7.575 ÷ 25 =
  8. 8.36 × 8 =
  9. 9.45 × 50 =
  10. 10.26 + 41 + 41 + 28 =
  11. 11.89 × 50 =
  12. 12.Best estimate of 201 × 3? (a) 1200 (b) 6000 (c) 60 (d) 600
  13. 13.14 × 13 =
  14. 14.2 + 8 + 8 + 2 =
  15. 15.300 ÷ 25 =
  16. 16.1 + 4 + 9 + 9 =
  17. 17.₹69.50 − ₹40.25 =
  18. 18.61² =
  19. 19.307 − 76 =
  20. 20.39 × 15 =
  21. 21.15% of 40 =
  22. 22.63 − 38 =
  23. 23.₹56.25 + ₹22.40 =
  24. 24.39² =
  25. 25.10% of 780 =
  26. 26.311 − 78 =
  27. 27.Check with nines: 81 × 83 = 6723. Correct or wrong? (a) correct (b) wrong
  28. 28.80 + 38 + 52 + 87 =
  29. 29.320 ÷ 5 =
  30. 30.99 + 89 =
  31. 31.59² =
  32. 32.25 × 5 =
  33. 33.1000 ÷ 50 =
  34. 34.1250 ÷ 25 =
  35. 35.₹98.90 + ₹40.95 =
  36. 36.66 × 5 =
  37. 37.15% of 890 =
  38. 38.31 × 4 =
  39. 39.36 × 5 =
  40. 40.20% of 530 =

Answer key

  1. 60
  2. 600
  3. 287
  4. 164
  5. 3200
  6. 324
  7. 23
  8. 288
  9. 2250
  10. 136
  11. 4450
  12. 600
  13. 182
  14. 20
  15. 12
  16. 23
  17. 29.25
  18. 3721
  19. 231
  20. 585
  21. 6
  22. 25
  23. 78.65
  24. 1521
  25. 78
  26. 233
  27. correct
  28. 257
  29. 64
  30. 188
  31. 3481
  32. 125
  33. 20
  34. 50
  35. 139.85
  36. 330
  37. 133.5
  38. 124
  39. 180
  40. 106

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