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Tables & multiplication lesson 22: Mixed challenge · Set 151 · 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.Is 86 × 1.2 bigger or smaller than 86? (a) bigger (b) smaller
  2. 2.45 × 6 =
  3. 3.16 × 75 =
  4. 4.55 × 65 =
  5. 5.27 × 3 =
  6. 6.Is 66 × 1.1 bigger or smaller than 66? (a) bigger (b) smaller
  7. 7.53 × 3 =
  8. 8.12 × 5 =
  9. 9.36 × 6 =
  10. 10.10 × 75 =
  11. 11.A hall has 5 rows of 7 chairs and 2 extra chairs at the back. How many chairs are there in all?
  12. 12.Is 45 × 0.9 bigger or smaller than 45? (a) bigger (b) smaller
  13. 13.Is 15 × 0.5 bigger or smaller than 15? (a) bigger (b) smaller
  14. 14.71 × 8 =
  15. 15.5 × 19 =
  16. 16.76 × 84 =
  17. 17.15 × 3 =
  18. 18.19 × 21 =
  19. 19.42 × 7 =
  20. 20.Is 74 × 0.75 bigger or smaller than 74? (a) bigger (b) smaller
  21. 21.69 × 5 =
  22. 22.65 × 75 =
  23. 23.15 × 6 =
  24. 24.33 × 9 =
  25. 25.22 × 45 =
  26. 26.73 × 5 =
  27. 27.4 × 49 =
  28. 28.23 × 27 =
  29. 29.41 × 8 =
  30. 30.Is 67 × 2.5 bigger or smaller than 67? (a) bigger (b) smaller
  31. 31.64 × 9 =
  32. 32.36 × 125 =
  33. 33.68 × 5 =
  34. 34.72 × 78 =
  35. 35.35 × 45 =
  36. 36.35 × 10 =
  37. 37.62 × 5 =
  38. 38.18 × 50 =
  39. 39.24 × 9 =
  40. 40.65 × 38 =

Answer key

  1. bigger
  2. 270
  3. 1200
  4. 3575
  5. 81
  6. bigger
  7. 159
  8. 60
  9. 216
  10. 750
  11. 37
  12. smaller
  13. smaller
  14. 568
  15. 95
  16. 6384
  17. 45
  18. 399
  19. 294
  20. smaller
  21. 345
  22. 4875
  23. 90
  24. 297
  25. 990
  26. 365
  27. 196
  28. 621
  29. 328
  30. bigger
  31. 576
  32. 4500
  33. 340
  34. 5616
  35. 1575
  36. 350
  37. 310
  38. 900
  39. 216
  40. 2470

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