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Tables & multiplication lesson 22: Mixed challenge · Set 819 · 40 questions
TalentJR

How it works (Choose a strategy): A number ending in 5 and an even number → double and halve. A number ending in 9 or 8 → round and adjust. Two numbers the same distance from a round number → middle square. Otherwise → split into tens and ones.

NameDateTime takenScore ___ / 40
  1. 1.84 × 50 =
  2. 2.48 × 52 =
  3. 3.18 × 22 =
  4. 4.3 × 29 =
  5. 5.Is 13 × 2.5 bigger or smaller than 13? (a) bigger (b) smaller
  6. 6.8 × 49 =
  7. 7.Is 42 × 1.1 bigger or smaller than 42? (a) bigger (b) smaller
  8. 8.14 × 8 =
  9. 9.14 × 45 =
  10. 10.62 × 5 =
  11. 11.51 × 8 =
  12. 12.11 × 19 =
  13. 13.3 × 39 =
  14. 14.4 × 19 =
  15. 15.75 × 30 =
  16. 16.25 × 35 =
  17. 17.5 × 49 =
  18. 18.Is 16 × 0.25 bigger or smaller than 16? (a) bigger (b) smaller
  19. 19.55 × 65 =
  20. 20.47 × 53 =
  21. 21.36 × 5 =
  22. 22.75 × 10 =
  23. 23.A garden has 9 rows with 12 plants in each row, but 4 plants are missing. How many plants are there?
  24. 24.Is 91 × 2.5 bigger or smaller than 91? (a) bigger (b) smaller
  25. 25.18 × 25 =
  26. 26.34 × 55 =
  27. 27.A garden has 7 rows with 15 plants in each row, but 5 plants are missing. How many plants are there?
  28. 28.75 × 85 =
  29. 29.72 × 50 =
  30. 30.54 × 6 =
  31. 31.97 × 8 =
  32. 32.35 × 22 =
  33. 33.55 × 20 =
  34. 34.4 × 19 =
  35. 35.56 × 25 =
  36. 36.25 × 36 =
  37. 37.31 × 39 =
  38. 38.6 × 14 =
  39. 39.44 × 9 =
  40. 40.Is 81 × 0.75 bigger or smaller than 81? (a) bigger (b) smaller

Answer key

  1. 4200
  2. 2496
  3. 396
  4. 87
  5. bigger
  6. 392
  7. bigger
  8. 112
  9. 630
  10. 310
  11. 408
  12. 209
  13. 117
  14. 76
  15. 2250
  16. 875
  17. 245
  18. smaller
  19. 3575
  20. 2491
  21. 180
  22. 750
  23. 104
  24. bigger
  25. 450
  26. 1870
  27. 100
  28. 6375
  29. 3600
  30. 324
  31. 776
  32. 770
  33. 1100
  34. 76
  35. 1400
  36. 900
  37. 1209
  38. 84
  39. 396
  40. smaller

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