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Tables & multiplication lesson 22: Mixed challenge · Set 990 · 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. 1.58 × 50 =
  2. 2.Is 15 × 1.5 bigger or smaller than 15? (a) bigger (b) smaller
  3. 3.A hall has 4 rows of 12 chairs and 7 extra chairs at the back. How many chairs are there in all?
  4. 4.Is 33 × 0.75 bigger or smaller than 33? (a) bigger (b) smaller
  5. 5.5 × 51 =
  6. 6.18 × 5 =
  7. 7.25 × 99 =
  8. 8.5 × 9 =
  9. 9.31 × 3 =
  10. 10.15 × 99 =
  11. 11.54 × 50 =
  12. 12.13 × 49 =
  13. 13.9 × 29 =
  14. 14.55 × 65 =
  15. 15.A rangoli has 7 rows of 4 dots. How many dots are there in all?
  16. 16.77 × 6 =
  17. 17.13 × 49 =
  18. 18.2 × 14 =
  19. 19.25 × 22 =
  20. 20.40 × 98 =
  21. 21.125 × 24 =
  22. 22.40 × 50 =
  23. 23.Is 47 × 1.5 bigger or smaller than 47? (a) bigger (b) smaller
  24. 24.Is 82 × 0.9 bigger or smaller than 82? (a) bigger (b) smaller
  25. 25.9 × 11 =
  26. 26.26 × 4 =
  27. 27.A school bus has 12 rows of seats and 2 children sit in each row. How many children can sit?
  28. 28.24 × 45 =
  29. 29.34 × 8 =
  30. 30.15 × 38 =
  31. 31.12 × 75 =
  32. 32.A hall has 4 rows of 12 chairs and 9 extra chairs at the back. How many chairs are there in all?
  33. 33.A box has 7 ladoos. How many ladoos are there in 6 boxes?
  34. 34.99 × 7 =
  35. 35.10 × 9 =
  36. 36.125 × 36 =
  37. 37.69 × 71 =
  38. 38.Is 31 × 2.5 bigger or smaller than 31? (a) bigger (b) smaller
  39. 39.Is 91 × 0.75 bigger or smaller than 91? (a) bigger (b) smaller
  40. 40.27 × 5 =

Answer key

  1. 2900
  2. bigger
  3. 55
  4. smaller
  5. 255
  6. 90
  7. 2475
  8. 45
  9. 93
  10. 1485
  11. 2700
  12. 637
  13. 261
  14. 3575
  15. 28
  16. 462
  17. 637
  18. 28
  19. 550
  20. 3920
  21. 3000
  22. 2000
  23. bigger
  24. smaller
  25. 99
  26. 104
  27. 24
  28. 1080
  29. 272
  30. 570
  31. 900
  32. 57
  33. 42
  34. 693
  35. 90
  36. 4500
  37. 4899
  38. bigger
  39. smaller
  40. 135

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