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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 736 · 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. 1.391 + 28 =
  2. 2.79² =
  3. 3.187 − 86 =
  4. 4.6 + 4 + 5 + 2 =
  5. 5.39² =
  6. 6.62 × 50 =
  7. 7.17 × 14 =
  8. 8.57 + 50 + 17 + 76 =
  9. 9.17 × 5 =
  10. 10.1150 ÷ 50 =
  11. 11.₹95.95 + ₹24.05 =
  12. 12.265 ÷ 5 =
  13. 13.28 × 50 =
  14. 14.Check with nines: 90 × 77 = 6930. Correct or wrong? (a) wrong (b) correct
  15. 15.530 − 57 =
  16. 16.572 − 57 =
  17. 17.14 × 15 =
  18. 18.Check with nines: 303 + 490 = 790. Correct or wrong? (a) wrong (b) correct
  19. 19.16 × 50 =
  20. 20.75 + 17 + 73 + 75 =
  21. 21.Check with nines: 44 × 51 = 2249. Correct or wrong? (a) correct (b) wrong
  22. 22.5% of 180 =
  23. 23.18 × 18 =
  24. 24.15 × 11 =
  25. 25.₹88.85 + ₹45.20 =
  26. 26.35 × 15 =
  27. 27.6 + 9 + 4 + 2 + 9 =
  28. 28.435 ÷ 5 =
  29. 29.41² =
  30. 30.59 + 87 =
  31. 31.89 + 44 + 60 + 18 =
  32. 32.14 × 16 =
  33. 33.990 ÷ 5 =
  34. 34.140 × 4 =
  35. 35.5 + 4 + 2 + 1 + 6 =
  36. 36.12 × 15 =
  37. 37.51² =
  38. 38.18 × 19 =
  39. 39.10% of 820 =
  40. 40.4 + 1 + 5 + 9 =

Answer key

  1. 419
  2. 6241
  3. 101
  4. 17
  5. 1521
  6. 3100
  7. 238
  8. 200
  9. 85
  10. 23
  11. 120
  12. 53
  13. 1400
  14. correct
  15. 473
  16. 515
  17. 210
  18. wrong
  19. 800
  20. 240
  21. wrong
  22. 9
  23. 324
  24. 165
  25. 134.05
  26. 525
  27. 30
  28. 87
  29. 1681
  30. 146
  31. 211
  32. 224
  33. 198
  34. 560
  35. 18
  36. 180
  37. 2601
  38. 342
  39. 82
  40. 19

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