How do you solve 821*54 using an area model

     800 20 1    

50|          |     |   |

4  |          |      |   |

pretty much a rectangle with 800    20    1    at the top

50     4 on the side

and split the numbers in the box - i tried to recreate it as much as possible

oh then in each little box you have to multiply the numbers so

50 x 800 = 40,000 in the box

50 x 20 = 1,000 in the next box

50 x 1 = 50 in the next box

4 x 800 = 3,200

4 x 20 = 80

4 x 1 = 4

then you add all of them which would be 44,334

it has changed from the width and the height.

step-by-step explanation:

the answer is 48m^2!

step-by-step explanation: