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Tables & multiplication lesson 22: Mixed challenge · Set 489 · 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 78 × 1.1 bigger or smaller than 78? (a) bigger (b) smaller
  2. 2.5 × 9 =
  3. 3.19 × 21 =
  4. 4.125 × 20 =
  5. 5.96 × 4 =
  6. 6.86 × 50 =
  7. 7.6 × 51 =
  8. 8.26 × 5 =
  9. 9.4 × 25 =
  10. 10.38 × 50 =
  11. 11.88 × 25 =
  12. 12.A garden has 7 rows with 14 plants in each row, but 2 plants are missing. How many plants are there?
  13. 13.5 × 18 =
  14. 14.9 × 31 =
  15. 15.Is 33 × 0.2 bigger or smaller than 33? (a) bigger (b) smaller
  16. 16.39 × 41 =
  17. 17.27 × 9 =
  18. 18.38 × 15 =
  19. 19.4 × 98 =
  20. 20.13 × 8 =
  21. 21.5 × 9 =
  22. 22.14 × 65 =
  23. 23.68 × 25 =
  24. 24.48 × 52 =
  25. 25.10 × 25 =
  26. 26.46 × 5 =
  27. 27.59 × 8 =
  28. 28.20 × 55 =
  29. 29.A box has 11 ladoos. How many ladoos are there in 4 boxes?
  30. 30.21 × 29 =
  31. 31.32 × 75 =
  32. 32.24 × 25 =
  33. 33.18 × 8 =
  34. 34.56 × 64 =
  35. 35.Is 87 × 1.2 bigger or smaller than 87? (a) bigger (b) smaller
  36. 36.Is 86 × 1.5 bigger or smaller than 86? (a) bigger (b) smaller
  37. 37.17 × 7 =
  38. 38.Is 43 × 2.5 bigger or smaller than 43? (a) bigger (b) smaller
  39. 39.47 × 53 =
  40. 40.75 × 30 =

Answer key

  1. bigger
  2. 45
  3. 399
  4. 2500
  5. 384
  6. 4300
  7. 306
  8. 130
  9. 100
  10. 1900
  11. 2200
  12. 96
  13. 90
  14. 279
  15. smaller
  16. 1599
  17. 243
  18. 570
  19. 392
  20. 104
  21. 45
  22. 910
  23. 1700
  24. 2496
  25. 250
  26. 230
  27. 472
  28. 1100
  29. 44
  30. 609
  31. 2400
  32. 600
  33. 144
  34. 3584
  35. bigger
  36. bigger
  37. 119
  38. bigger
  39. 2491
  40. 2250

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