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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 831 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.207 × 9 =
  2. 2.634 × 8 =
  3. 3.362 × 8 =
  4. 4.686 × 8 =
  5. 5.725 × 4 =
  6. 6.149 × 8 =
  7. 7.436 × 5 =
  8. 8.331 × 6 =
  9. 9.824 × 9 =
  10. 10.384 × 3 =
  11. 11.951 × 9 =
  12. 12.929 × 9 =
  13. 13.552 × 8 =
  14. 14.251 × 8 =
  15. 15.244 × 9 =
  16. 16.487 × 8 =
  17. 17.521 × 5 =
  18. 18.537 × 3 =
  19. 19.555 × 8 =
  20. 20.651 × 3 =
  21. 21.389 × 5 =
  22. 22.643 × 7 =
  23. 23.854 × 8 =
  24. 24.297 × 5 =
  25. 25.178 × 9 =
  26. 26.873 × 3 =
  27. 27.698 × 8 =
  28. 28.966 × 4 =
  29. 29.877 × 5 =
  30. 30.177 × 3 =
  31. 31.632 × 4 =
  32. 32.796 × 5 =
  33. 33.969 × 8 =
  34. 34.313 × 4 =
  35. 35.447 × 5 =
  36. 36.174 × 7 =
  37. 37.212 × 5 =
  38. 38.153 × 4 =
  39. 39.741 × 5 =
  40. 40.846 × 7 =

Answer key

  1. 1863
  2. 5072
  3. 2896
  4. 5488
  5. 2900
  6. 1192
  7. 2180
  8. 1986
  9. 7416
  10. 1152
  11. 8559
  12. 8361
  13. 4416
  14. 2008
  15. 2196
  16. 3896
  17. 2605
  18. 1611
  19. 4440
  20. 1953
  21. 1945
  22. 4501
  23. 6832
  24. 1485
  25. 1602
  26. 2619
  27. 5584
  28. 3864
  29. 4385
  30. 531
  31. 2528
  32. 3980
  33. 7752
  34. 1252
  35. 2235
  36. 1218
  37. 1060
  38. 612
  39. 3705
  40. 5922

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