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## Early math review

### Course: Early math review>Unit 4

Lesson 2: Subtraction within 20

# Subtract within 20 using ten frames

Sal subtracts 13-6 using ten frames. Created by Sal Khan.

## Want to join the conversation?

• How do you subtract 200-47
I cant figure it out, and i try the box way.
• Hi Jeremy Burr,
200 - 47 = 153 because if you have 200 boxes and you shade in 47 of those 200 boxes you find that you have 153 boxes left because they are no filled in.
For example, instead of doing 200 - 47 first do 200 - 40, it equals 160
now all you gotta do is count backwards for 160 7 times.
160 - 7 = 153
Hope this helps.
• what is 13 - 6 = ?
• 6 subtracted from 13 equals 7
• what 12 x 347 =
• 12*347 is 4164.
(1 vote)
• what is 100x 35
• 100 x 35 = 3,500
• 8+7 is 15 EZ
• ximena TIME
• 13 is a two digit number and 6 is a one digit number. So 13-6=7