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Tables & multiplication lesson 22: Mixed challenge · Set 817 · 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. 1.94 × 5 =
  2. 2.39 × 41 =
  3. 3.13 × 49 =
  4. 4.9 × 49 =
  5. 5.4 × 9 =
  6. 6.55 × 22 =
  7. 7.Is 33 × 0.9 bigger or smaller than 33? (a) bigger (b) smaller
  8. 8.25 × 9 =
  9. 9.Is 37 × 1.1 bigger or smaller than 37? (a) bigger (b) smaller
  10. 10.21 × 5 =
  11. 11.There are 4 packets with 12 pencils in each packet. How many pencils are there?
  12. 12.51 × 6 =
  13. 13.48 × 52 =
  14. 14.41 × 6 =
  15. 15.25 × 8 =
  16. 16.72 × 25 =
  17. 17.56 × 64 =
  18. 18.45 × 6 =
  19. 19.21 × 99 =
  20. 20.55 × 7 =
  21. 21.74 × 4 =
  22. 22.9 × 43 =
  23. 23.How many days are there in 3 weeks?
  24. 24.Is 55 × 1.1 bigger or smaller than 55? (a) bigger (b) smaller
  25. 25.48 × 9 =
  26. 26.29 × 31 =
  27. 27.36 × 4 =
  28. 28.56 × 64 =
  29. 29.Is 99 × 0.75 bigger or smaller than 99? (a) bigger (b) smaller
  30. 30.45 × 38 =
  31. 31.18 × 7 =
  32. 32.11 × 99 =
  33. 33.12 × 55 =
  34. 34.40 × 15 =
  35. 35.69 × 71 =
  36. 36.40 × 25 =
  37. 37.Is 14 × 0.75 bigger or smaller than 14? (a) bigger (b) smaller
  38. 38.Is 23 × 0.5 bigger or smaller than 23? (a) bigger (b) smaller
  39. 39.40 × 25 =
  40. 40.50 × 50 =

Answer key

  1. 470
  2. 1599
  3. 637
  4. 441
  5. 36
  6. 1210
  7. smaller
  8. 225
  9. bigger
  10. 105
  11. 48
  12. 306
  13. 2496
  14. 246
  15. 200
  16. 1800
  17. 3584
  18. 270
  19. 2079
  20. 385
  21. 296
  22. 387
  23. 21
  24. bigger
  25. 432
  26. 899
  27. 144
  28. 3584
  29. smaller
  30. 1710
  31. 126
  32. 1089
  33. 660
  34. 600
  35. 4899
  36. 1000
  37. smaller
  38. smaller
  39. 1000
  40. 2500

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