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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 283 · 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. 1.300 ÷ 25 =
  2. 2.2 + 1 + 9 + 1 + 7 =
  3. 3.13 × 11 =
  4. 4.5 + 4 + 5 + 2 + 9 =
  5. 5.91² =
  6. 6.265 ÷ 5 =
  7. 7.₹95.85 − ₹47.60 =
  8. 8.8 + 2 + 1 + 5 =
  9. 9.300 ÷ 50 =
  10. 10.11 × 15 =
  11. 11.71 × 4 =
  12. 12.3 + 4 + 6 + 7 =
  13. 13.57 + 27 =
  14. 14.8 + 3 + 6 + 6 + 4 =
  15. 15.396 − 48 =
  16. 16.91² =
  17. 17.27 × 15 =
  18. 18.391 − 59 =
  19. 19.Check with nines: 91 × 82 = 7462. Correct or wrong? (a) correct (b) wrong
  20. 20.Best estimate of 903 × 6? (a) 10800 (b) 5400 (c) 54000 (d) 540
  21. 21.59² =
  22. 22.97 − 46 =
  23. 23.25% of 900 =
  24. 24.49 + 39 + 43 + 70 =
  25. 25.Best estimate of 597 × 5? (a) 30000 (b) 300 (c) 6000 (d) 3000
  26. 26.12 × 16 =
  27. 27.31 × 8 =
  28. 28.51² =
  29. 29.89² =
  30. 30.Check with nines: 190 + 994 = 1191. Correct or wrong? (a) correct (b) wrong
  31. 31.5 + 5 + 7 + 3 + 3 =
  32. 32.₹54.20 + ₹36.90 =
  33. 33.22 + 44 + 27 + 14 =
  34. 34.565 − 17 =
  35. 35.11 × 12 =
  36. 36.155 × 4 =
  37. 37.₹70.25 + ₹21.05 =
  38. 38.90 × 50 =
  39. 39.₹64.55 − ₹9.30 =
  40. 40.152 − 68 =

Answer key

  1. 12
  2. 20
  3. 143
  4. 25
  5. 8281
  6. 53
  7. 48.25
  8. 16
  9. 6
  10. 165
  11. 284
  12. 20
  13. 84
  14. 27
  15. 348
  16. 8281
  17. 405
  18. 332
  19. correct
  20. 5400
  21. 3481
  22. 51
  23. 225
  24. 201
  25. 3000
  26. 192
  27. 248
  28. 2601
  29. 7921
  30. wrong
  31. 23
  32. 91.1
  33. 107
  34. 548
  35. 132
  36. 620
  37. 91.3
  38. 4500
  39. 55.25
  40. 84

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