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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 846 · 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. 1.114 × 9 =
  2. 2.841 × 5 =
  3. 3.875 × 9 =
  4. 4.747 × 7 =
  5. 5.303 × 7 =
  6. 6.185 × 8 =
  7. 7.684 × 9 =
  8. 8.737 × 7 =
  9. 9.137 × 9 =
  10. 10.144 × 7 =
  11. 11.162 × 7 =
  12. 12.914 × 3 =
  13. 13.375 × 7 =
  14. 14.632 × 9 =
  15. 15.921 × 3 =
  16. 16.741 × 8 =
  17. 17.133 × 5 =
  18. 18.788 × 9 =
  19. 19.902 × 5 =
  20. 20.522 × 9 =
  21. 21.422 × 6 =
  22. 22.591 × 8 =
  23. 23.542 × 8 =
  24. 24.166 × 3 =
  25. 25.379 × 6 =
  26. 26.381 × 6 =
  27. 27.201 × 6 =
  28. 28.276 × 5 =
  29. 29.802 × 6 =
  30. 30.193 × 4 =
  31. 31.393 × 4 =
  32. 32.379 × 4 =
  33. 33.821 × 7 =
  34. 34.531 × 6 =
  35. 35.709 × 3 =
  36. 36.481 × 7 =
  37. 37.561 × 8 =
  38. 38.856 × 4 =
  39. 39.882 × 7 =
  40. 40.261 × 3 =

Answer key

  1. 1026
  2. 4205
  3. 7875
  4. 5229
  5. 2121
  6. 1480
  7. 6156
  8. 5159
  9. 1233
  10. 1008
  11. 1134
  12. 2742
  13. 2625
  14. 5688
  15. 2763
  16. 5928
  17. 665
  18. 7092
  19. 4510
  20. 4698
  21. 2532
  22. 4728
  23. 4336
  24. 498
  25. 2274
  26. 2286
  27. 1206
  28. 1380
  29. 4812
  30. 772
  31. 1572
  32. 1516
  33. 5747
  34. 3186
  35. 2127
  36. 3367
  37. 4488
  38. 3424
  39. 6174
  40. 783

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