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Tables & multiplication lesson 22: Mixed challenge · Set 821 · 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. 1.88 × 25 =
  2. 2.49 × 51 =
  3. 3.A rangoli has 7 rows of 7 dots. How many dots are there in all?
  4. 4.17 × 7 =
  5. 5.24 × 5 =
  6. 6.6 × 75 =
  7. 7.Is 81 × 0.5 bigger or smaller than 81? (a) bigger (b) smaller
  8. 8.45 × 10 =
  9. 9.35 × 10 =
  10. 10.34 × 5 =
  11. 11.7 × 19 =
  12. 12.82 × 88 =
  13. 13.10 × 99 =
  14. 14.45 × 8 =
  15. 15.15 × 28 =
  16. 16.23 × 3 =
  17. 17.55 × 32 =
  18. 18.4 × 49 =
  19. 19.8 × 33 =
  20. 20.Is 33 × 0.5 bigger or smaller than 33? (a) bigger (b) smaller
  21. 21.A garden has 9 rows with 8 plants in each row, but 3 plants are missing. How many plants are there?
  22. 22.2 × 25 =
  23. 23.35 × 45 =
  24. 24.5 × 35 =
  25. 25.69 × 71 =
  26. 26.75 × 26 =
  27. 27.31 × 4 =
  28. 28.49 × 9 =
  29. 29.14 × 19 =
  30. 30.A rangoli has 4 rows of 10 dots. How many dots are there in all?
  31. 31.83 × 9 =
  32. 32.Is 66 × 1.1 bigger or smaller than 66? (a) bigger (b) smaller
  33. 33.12 × 29 =
  34. 34.A school bus has 10 rows of seats and 5 children sit in each row. How many children can sit?
  35. 35.A garden has 7 rows with 11 plants in each row, but 1 plants are missing. How many plants are there?
  36. 36.7 × 42 =
  37. 37.99 × 101 =
  38. 38.32 × 4 =
  39. 39.83 × 8 =
  40. 40.A garden has 4 rows with 8 plants in each row, but 2 plants are missing. How many plants are there?

Answer key

  1. 2200
  2. 2499
  3. 49
  4. 119
  5. 120
  6. 450
  7. smaller
  8. 450
  9. 350
  10. 170
  11. 133
  12. 7216
  13. 990
  14. 360
  15. 420
  16. 69
  17. 1760
  18. 196
  19. 264
  20. smaller
  21. 69
  22. 50
  23. 1575
  24. 175
  25. 4899
  26. 1950
  27. 124
  28. 441
  29. 266
  30. 40
  31. 747
  32. bigger
  33. 348
  34. 50
  35. 76
  36. 294
  37. 9999
  38. 128
  39. 664
  40. 30

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