Lattice Multiplication Step-by-Step
356 * 25 = I don’t remember how to multiply!!!
HELP!!! I can help!!  Let me show you how to do Lattice Multiplication.
356 * 25 3 5 6 2 5 Make a grid the exact size of your problem.  A 2 digit number times a 3 digit number gets a 2 x 3 grid.  Draw a diagonal line in each box.
356 * 25 3 5 6 2 5 1 2 Multiply 6 * 2 and place the answer in the grid where the lines meet.
356 * 25 3 5 6 2 5 1 2 0 1 Multiply 5 * 2 and place the answer in the grid where the lines meet.
356 * 25 3 5 6 2 5 1 2 0 1 6 0 Multiply 3 * 2 and place the answer in the grid where the lines meet.  Use a zero as a place holder.
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Multiply 6 * 5 and place the answer in the grid where the lines meet.
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Multiply 5 * 5 and place the answer in the grid where the lines meet. 5 2
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Multiply 3 * 5 and place the answer in the grid where the lines meet. 5 2 5 1
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid.  Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid.  Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid.  Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1 9
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid.  Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1 9 8
356 * 25 3 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid.  Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1 9 8
356 * 25 = 8,900 That is Soooo Cool!!! Thanks!

Lattice Multiplication

  • 1.
  • 2.
    356 * 25= I don’t remember how to multiply!!!
  • 3.
    HELP!!! I canhelp!! Let me show you how to do Lattice Multiplication.
  • 4.
    356 * 253 5 6 2 5 Make a grid the exact size of your problem. A 2 digit number times a 3 digit number gets a 2 x 3 grid. Draw a diagonal line in each box.
  • 5.
    356 * 253 5 6 2 5 1 2 Multiply 6 * 2 and place the answer in the grid where the lines meet.
  • 6.
    356 * 253 5 6 2 5 1 2 0 1 Multiply 5 * 2 and place the answer in the grid where the lines meet.
  • 7.
    356 * 253 5 6 2 5 1 2 0 1 6 0 Multiply 3 * 2 and place the answer in the grid where the lines meet. Use a zero as a place holder.
  • 8.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Multiply 6 * 5 and place the answer in the grid where the lines meet.
  • 9.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Multiply 5 * 5 and place the answer in the grid where the lines meet. 5 2
  • 10.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Multiply 3 * 5 and place the answer in the grid where the lines meet. 5 2 5 1
  • 11.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0
  • 12.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1
  • 13.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1 9
  • 14.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1 9 8
  • 15.
    356 * 253 5 6 2 5 1 2 0 1 6 0 0 3 Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 2 5 1 0 0 +1 9 8
  • 16.
    356 * 25= 8,900 That is Soooo Cool!!! Thanks!