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Tables & multiplication lesson 22: Mixed challenge · Set 810 · 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.A box has 6 ladoos. How many ladoos are there in 8 boxes?
  2. 2.A school bus has 8 rows of seats and 5 children sit in each row. How many children can sit?
  3. 3.A school bus has 10 rows of seats and 5 children sit in each row. How many children can sit?
  4. 4.15 × 18 =
  5. 5.Is 23 × 0.75 bigger or smaller than 23? (a) bigger (b) smaller
  6. 6.5 × 19 =
  7. 7.45 × 36 =
  8. 8.Is 52 × 2.5 bigger or smaller than 52? (a) bigger (b) smaller
  9. 9.Is 72 × 0.9 bigger or smaller than 72? (a) bigger (b) smaller
  10. 10.33 × 99 =
  11. 11.16 × 15 =
  12. 12.32 × 5 =
  13. 13.16 × 65 =
  14. 14.6 × 36 =
  15. 15.34 × 5 =
  16. 16.29 × 31 =
  17. 17.32 × 9 =
  18. 18.31 × 99 =
  19. 19.91 × 8 =
  20. 20.12 × 99 =
  21. 21.18 × 50 =
  22. 22.35 × 20 =
  23. 23.3 × 17 =
  24. 24.20 × 75 =
  25. 25.6 × 35 =
  26. 26.15 × 25 =
  27. 27.Is 48 × 1.1 bigger or smaller than 48? (a) bigger (b) smaller
  28. 28.76 × 50 =
  29. 29.15 × 25 =
  30. 30.11 × 29 =
  31. 31.41 × 49 =
  32. 32.99 × 101 =
  33. 33.15 × 14 =
  34. 34.2 × 59 =
  35. 35.26 × 50 =
  36. 36.38 × 5 =
  37. 37.96 × 104 =
  38. 38.41 × 9 =
  39. 39.13 × 17 =
  40. 40.79 × 81 =

Answer key

  1. 48
  2. 40
  3. 50
  4. 270
  5. smaller
  6. 95
  7. 1620
  8. bigger
  9. smaller
  10. 3267
  11. 240
  12. 160
  13. 1040
  14. 216
  15. 170
  16. 899
  17. 288
  18. 3069
  19. 728
  20. 1188
  21. 900
  22. 700
  23. 51
  24. 1500
  25. 210
  26. 375
  27. bigger
  28. 3800
  29. 375
  30. 319
  31. 2009
  32. 9999
  33. 210
  34. 118
  35. 1300
  36. 190
  37. 9984
  38. 369
  39. 221
  40. 6399

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