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math

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Draw a picture of base-ten blocks and use the area interpretation
for multiplication to show 34 X 28 complete the calculation by using a paper-and-pencil
algorithm

  • math -

    draw a rectangle 34 by 28
    Along the length, mark off 10,10,10,4
    and along the width mark off 10,10,8

    fill in the grid using those marks
    I see 6 10by 10 squares ---> 600
    I240 see 2 rectangles 4 by 10 ---> 80
    I see 3 rectangles 8 by 10 ---> 240
    and finally I see a 4 by 8 rectangle --> 32
    so 600 + 80 + 240 + 32 = 952

    I hope you are learning this for the purpose of understanding multiplication, and are not actually using this method to multiply.

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