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Tables & multiplication lesson 22: Mixed challenge · Set 570 · 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 72 × 2.5 bigger or smaller than 72? (a) bigger (b) smaller
  2. 2.Is 14 × 1.5 bigger or smaller than 14? (a) bigger (b) smaller
  3. 3.100 × 25 =
  4. 4.88 × 92 =
  5. 5.90 × 100 =
  6. 6.69 × 71 =
  7. 7.93 × 4 =
  8. 8.17 × 3 =
  9. 9.There are 4 packets with 7 pencils in each packet. How many pencils are there?
  10. 10.16 × 25 =
  11. 11.15 × 4 =
  12. 12.73 × 3 =
  13. 13.26 × 35 =
  14. 14.98 × 3 =
  15. 15.Is 64 × 1.2 bigger or smaller than 64? (a) bigger (b) smaller
  16. 16.38 × 25 =
  17. 17.85 × 95 =
  18. 18.Is 25 × 0.2 bigger or smaller than 25? (a) bigger (b) smaller
  19. 19.88 × 5 =
  20. 20.Is 58 × 1.1 bigger or smaller than 58? (a) bigger (b) smaller
  21. 21.3 × 25 =
  22. 22.45 × 10 =
  23. 23.30 × 99 =
  24. 24.49 × 3 =
  25. 25.Is 52 × 0.9 bigger or smaller than 52? (a) bigger (b) smaller
  26. 26.64 × 66 =
  27. 27.39 × 41 =
  28. 28.26 × 8 =
  29. 29.15 × 25 =
  30. 30.9 × 49 =
  31. 31.A school bus has 11 rows of seats and 2 children sit in each row. How many children can sit?
  32. 32.3 × 21 =
  33. 33.36 × 5 =
  34. 34.45 × 7 =
  35. 35.45 × 12 =
  36. 36.10 × 19 =
  37. 37.72 × 5 =
  38. 38.79 × 81 =
  39. 39.13 × 29 =
  40. 40.4 × 19 =

Answer key

  1. bigger
  2. bigger
  3. 2500
  4. 8096
  5. 9000
  6. 4899
  7. 372
  8. 51
  9. 28
  10. 400
  11. 60
  12. 219
  13. 910
  14. 294
  15. bigger
  16. 950
  17. 8075
  18. smaller
  19. 440
  20. bigger
  21. 75
  22. 450
  23. 2970
  24. 147
  25. smaller
  26. 4224
  27. 1599
  28. 208
  29. 375
  30. 441
  31. 22
  32. 63
  33. 180
  34. 315
  35. 540
  36. 190
  37. 360
  38. 6399
  39. 377
  40. 76

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