3 years ago

Show how to find 42×27 using an area model.

Mathematics

1 answer:

melomori [17]3 years ago

3 0

Step-by-step explanation:

First break it down

42= 40 & 2

27= 20 & 7

Then times 40 & 20 to get 800
20 x 2 to get 40
40 x 7 to get 280
7 x 2 to get 14

Now add them all together.

800 40 1080

+280 +14 + 54

---------- ------- ---------

1080 + 54 = 1134

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