what is 13 x 73 in box method

Question

what is the answer to this question 13 x 73 in the old school method which is box method please someone answer

 

Answer 1

Hi Keren,

 

It's kind of hard to draw a box, but I'll try ... first thing we need to do is write each number as the ten's value and the one's value. That is,

 

    13 = 10 + 3   and   73 = 70 + 3

 

Next, we put the 10 & 3 along the top of the box, and we put the 70 & 3 along the side, then multiply to get the values in each of the four boxes, as shown here:

 

            10                  3        

      | 70x10 =  |  70x3 =  |

 70 |    700      |     210    |

      |   3x10 =  |    3x3 =  |

  3  |      30      |       9       |

 

And lastly we add up the values in the four boxes, to get:

 

  13 x 73 = 700 + 210 + 30 + 9 = ??

 

I'll share the work with you and let you finish it up !