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Tables & multiplication lesson 22: Mixed challenge · Set 670 · 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. 1.78 × 5 =
  2. 2.24 × 25 =
  3. 3.71 × 6 =
  4. 4.21 × 4 =
  5. 5.9 × 49 =
  6. 6.24 × 7 =
  7. 7.4 × 41 =
  8. 8.Is 74 × 1.5 bigger or smaller than 74? (a) bigger (b) smaller
  9. 9.84 × 5 =
  10. 10.40 × 25 =
  11. 11.10 × 20 =
  12. 12.24 × 4 =
  13. 13.Is 62 × 0.9 bigger or smaller than 62? (a) bigger (b) smaller
  14. 14.Is 83 × 0.2 bigger or smaller than 83? (a) bigger (b) smaller
  15. 15.23 × 99 =
  16. 16.35 × 36 =
  17. 17.Is 36 × 2.5 bigger or smaller than 36? (a) bigger (b) smaller
  18. 18.10 × 98 =
  19. 19.60 × 5 =
  20. 20.There are 3 packets with 11 pencils in each packet. How many pencils are there?
  21. 21.Is 30 × 2.5 bigger or smaller than 30? (a) bigger (b) smaller
  22. 22.Is 97 × 1.1 bigger or smaller than 97? (a) bigger (b) smaller
  23. 23.45 × 22 =
  24. 24.There are 4 packets with 9 pencils in each packet. How many pencils are there?
  25. 25.15 × 19 =
  26. 26.9 × 9 =
  27. 27.A rangoli has 4 rows of 11 dots. How many dots are there in all?
  28. 28.3 × 31 =
  29. 29.55 × 28 =
  30. 30.12 × 3 =
  31. 31.9 × 98 =
  32. 32.16 × 24 =
  33. 33.96 × 25 =
  34. 34.10 × 20 =
  35. 35.11 × 9 =
  36. 36.Is 47 × 0.75 bigger or smaller than 47? (a) bigger (b) smaller
  37. 37.25 × 20 =
  38. 38.15 × 22 =
  39. 39.38 × 42 =
  40. 40.14 × 5 =

Answer key

  1. 390
  2. 600
  3. 426
  4. 84
  5. 441
  6. 168
  7. 164
  8. bigger
  9. 420
  10. 1000
  11. 200
  12. 96
  13. smaller
  14. smaller
  15. 2277
  16. 1260
  17. bigger
  18. 980
  19. 300
  20. 33
  21. bigger
  22. bigger
  23. 990
  24. 36
  25. 285
  26. 81
  27. 44
  28. 93
  29. 1540
  30. 36
  31. 882
  32. 384
  33. 2400
  34. 200
  35. 99
  36. smaller
  37. 500
  38. 330
  39. 1596
  40. 70

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