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Tables & multiplication lesson 22: Mixed challenge · Set 185 · 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. 1.72 × 78 =
  2. 2.74 × 5 =
  3. 3.45 × 18 =
  4. 4.52 × 25 =
  5. 5.26 × 50 =
  6. 6.Is 77 × 0.25 bigger or smaller than 77? (a) bigger (b) smaller
  7. 7.34 × 9 =
  8. 8.Is 39 × 0.2 bigger or smaller than 39? (a) bigger (b) smaller
  9. 9.How many days are there in 12 weeks?
  10. 10.How many days are there in 5 weeks?
  11. 11.22 × 75 =
  12. 12.Is 88 × 2.5 bigger or smaller than 88? (a) bigger (b) smaller
  13. 13.How many days are there in 9 weeks?
  14. 14.14 × 45 =
  15. 15.2 × 54 =
  16. 16.34 × 5 =
  17. 17.26 × 50 =
  18. 18.69 × 3 =
  19. 19.31 × 7 =
  20. 20.3 × 29 =
  21. 21.27 × 5 =
  22. 22.79 × 81 =
  23. 23.88 × 5 =
  24. 24.39 × 4 =
  25. 25.5 × 29 =
  26. 26.21 × 29 =
  27. 27.31 × 99 =
  28. 28.26 × 34 =
  29. 29.15 × 49 =
  30. 30.9 × 19 =
  31. 31.33 × 9 =
  32. 32.79 × 6 =
  33. 33.A school bus has 6 rows of seats and 5 children sit in each row. How many children can sit?
  34. 34.Is 23 × 0.5 bigger or smaller than 23? (a) bigger (b) smaller
  35. 35.11 × 19 =
  36. 36.75 × 24 =
  37. 37.9 × 31 =
  38. 38.A hall has 8 rows of 6 chairs and 3 extra chairs at the back. How many chairs are there in all?
  39. 39.18 × 125 =
  40. 40.6 × 38 =

Answer key

  1. 5616
  2. 370
  3. 810
  4. 1300
  5. 1300
  6. smaller
  7. 306
  8. smaller
  9. 84
  10. 35
  11. 1650
  12. bigger
  13. 63
  14. 630
  15. 108
  16. 170
  17. 1300
  18. 207
  19. 217
  20. 87
  21. 135
  22. 6399
  23. 440
  24. 156
  25. 145
  26. 609
  27. 3069
  28. 884
  29. 735
  30. 171
  31. 297
  32. 474
  33. 30
  34. smaller
  35. 209
  36. 1800
  37. 279
  38. 51
  39. 2250
  40. 228

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