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# Multiplying with area model: 16 x 27

Sal uses an area model to multiply 16x27. Created by Sal Khan.

## Want to join the conversation?

• Is it permissible to use this area concept by subtracting a 'negative' area?
For example, using our problem of 16 x 27, we could actually make an area of 20 x 27. We can then subtract an area of 4 x 27 to yield our answer.
We can easily calculate 20 x 27 = 540, and then subtract a similarly easy calculation of 4x27=108 → 540-108=432.
• If you have a problem like this, use his diagram, and add your partial products which means you add them to find the answer.
(1 vote)
• 30 -3
.____________.
| | |
| | |
20 | +600 | -60 |
| | |
|______|_____|
| | |
-4 | -120 | +12 |
|______|_____| this is my area model khan sir
• Is it permissible to use this area concept by subtracting a 'negative' area?
For example, using our problem of 16 x 27, we could actually make an area of 20 x 27. We can then subtract an area of 4 x 27 to yield our answer.
We can easily calculate 20 x 27 = 540, and then subtract a similarly easy calculation of 4x27=108 → 540-108=432.
• what is 42 time 73
• the anwser is 2,976
• Could you multiply in the negative’s and get a higher number?
• What would an aria model for 95 / 6 = ?

/ = divided by