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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 978 · 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. 1.847 × 6 =
  2. 2.428 × 4 =
  3. 3.321 × 3 =
  4. 4.138 × 4 =
  5. 5.855 × 8 =
  6. 6.981 × 8 =
  7. 7.183 × 4 =
  8. 8.611 × 4 =
  9. 9.672 × 4 =
  10. 10.244 × 3 =
  11. 11.742 × 3 =
  12. 12.373 × 6 =
  13. 13.894 × 6 =
  14. 14.269 × 4 =
  15. 15.769 × 5 =
  16. 16.958 × 4 =
  17. 17.427 × 9 =
  18. 18.611 × 9 =
  19. 19.837 × 3 =
  20. 20.186 × 7 =
  21. 21.536 × 6 =
  22. 22.952 × 8 =
  23. 23.184 × 8 =
  24. 24.885 × 4 =
  25. 25.794 × 9 =
  26. 26.551 × 6 =
  27. 27.318 × 3 =
  28. 28.283 × 4 =
  29. 29.886 × 9 =
  30. 30.308 × 6 =
  31. 31.943 × 4 =
  32. 32.351 × 7 =
  33. 33.688 × 6 =
  34. 34.458 × 7 =
  35. 35.638 × 7 =
  36. 36.332 × 3 =
  37. 37.561 × 6 =
  38. 38.516 × 8 =
  39. 39.756 × 4 =
  40. 40.936 × 5 =

Answer key

  1. 5082
  2. 1712
  3. 963
  4. 552
  5. 6840
  6. 7848
  7. 732
  8. 2444
  9. 2688
  10. 732
  11. 2226
  12. 2238
  13. 5364
  14. 1076
  15. 3845
  16. 3832
  17. 3843
  18. 5499
  19. 2511
  20. 1302
  21. 3216
  22. 7616
  23. 1472
  24. 3540
  25. 7146
  26. 3306
  27. 954
  28. 1132
  29. 7974
  30. 1848
  31. 3772
  32. 2457
  33. 4128
  34. 3206
  35. 4466
  36. 996
  37. 3366
  38. 4128
  39. 3024
  40. 4680

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