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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 581 · 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. 1.323 × 7 =
  2. 2.149 × 9 =
  3. 3.198 × 7 =
  4. 4.816 × 6 =
  5. 5.347 × 5 =
  6. 6.932 × 3 =
  7. 7.901 × 7 =
  8. 8.691 × 3 =
  9. 9.891 × 5 =
  10. 10.945 × 3 =
  11. 11.665 × 3 =
  12. 12.121 × 7 =
  13. 13.203 × 4 =
  14. 14.936 × 5 =
  15. 15.859 × 6 =
  16. 16.311 × 8 =
  17. 17.374 × 6 =
  18. 18.875 × 8 =
  19. 19.631 × 4 =
  20. 20.238 × 4 =
  21. 21.312 × 6 =
  22. 22.391 × 4 =
  23. 23.279 × 4 =
  24. 24.175 × 8 =
  25. 25.563 × 3 =
  26. 26.973 × 3 =
  27. 27.311 × 6 =
  28. 28.259 × 3 =
  29. 29.506 × 9 =
  30. 30.834 × 8 =
  31. 31.199 × 6 =
  32. 32.906 × 5 =
  33. 33.179 × 6 =
  34. 34.311 × 7 =
  35. 35.755 × 5 =
  36. 36.311 × 5 =
  37. 37.264 × 9 =
  38. 38.381 × 9 =
  39. 39.606 × 3 =
  40. 40.937 × 3 =

Answer key

  1. 2261
  2. 1341
  3. 1386
  4. 4896
  5. 1735
  6. 2796
  7. 6307
  8. 2073
  9. 4455
  10. 2835
  11. 1995
  12. 847
  13. 812
  14. 4680
  15. 5154
  16. 2488
  17. 2244
  18. 7000
  19. 2524
  20. 952
  21. 1872
  22. 1564
  23. 1116
  24. 1400
  25. 1689
  26. 2919
  27. 1866
  28. 777
  29. 4554
  30. 6672
  31. 1194
  32. 4530
  33. 1074
  34. 2177
  35. 3775
  36. 1555
  37. 2376
  38. 3429
  39. 1818
  40. 2811

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