answersLogoWhite

0


Best Answer

Since your number line starts at 20, add 20 to your figures and you will come up with the same answer.

21 - 8 = 41 - 28 = 13

User Avatar

Wiki User

9y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you subtract 21-8 by using a Number line from 20 to 50?
Write your answer...
Submit
Still have questions?
magnify glass
imp