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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 437 · 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. 1.17 × 18 =
  2. 2.16 × 11 =
  3. 3.434 + 97 =
  4. 4.Check with nines: 61 × 44 = 2684. Correct or wrong? (a) correct (b) wrong
  5. 5.₹28.15 − ₹14.95 =
  6. 6.55 × 50 =
  7. 7.₹24.10 + ₹17.90 =
  8. 8.₹97.75 + ₹12.15 =
  9. 9.33 + 97 =
  10. 10.24 × 5 =
  11. 11.20% of 900 =
  12. 12.31² =
  13. 13.₹21.45 + ₹13.45 =
  14. 14.43 × 15 =
  15. 15.44 + 65 + 75 + 22 =
  16. 16.27 × 15 =
  17. 17.209 + 18 =
  18. 18.194 − 69 =
  19. 19.12 × 17 =
  20. 20.Check with nines: 42 × 36 = 1512. Correct or wrong? (a) wrong (b) correct
  21. 21.56 − 36 =
  22. 22.47 + 15 + 87 + 67 =
  23. 23.90 ÷ 5 =
  24. 24.325 ÷ 25 =
  25. 25.₹56.75 + ₹5.40 =
  26. 26.11 × 13 =
  27. 27.Best estimate of 98 × 9? (a) 1800 (b) 90 (c) 9000 (d) 900
  28. 28.765 ÷ 5 =
  29. 29.Best estimate of 69 × 68? (a) 4900 (b) 49000 (c) 9800 (d) 490
  30. 30.12 × 15 =
  31. 31.61² =
  32. 32.162 − 67 =
  33. 33.66 × 8 =
  34. 34.13 × 8 =
  35. 35.72 + 47 + 68 + 82 =
  36. 36.49² =
  37. 37.51² =
  38. 38.19 × 15 =
  39. 39.725 ÷ 25 =
  40. 40.29 × 4 =

Answer key

  1. 306
  2. 176
  3. 531
  4. correct
  5. 13.2
  6. 2750
  7. 42
  8. 109.9
  9. 130
  10. 120
  11. 180
  12. 961
  13. 34.9
  14. 645
  15. 206
  16. 405
  17. 227
  18. 125
  19. 204
  20. correct
  21. 20
  22. 216
  23. 18
  24. 13
  25. 62.15
  26. 143
  27. 900
  28. 153
  29. 4900
  30. 180
  31. 3721
  32. 95
  33. 528
  34. 104
  35. 269
  36. 2401
  37. 2601
  38. 285
  39. 29
  40. 116

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