Adding 53+17 by making a group of 10

Adding 53+17 by making a group of 10

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Sal adds 53+17 by breaking apart the numbers and making a group of 10.

ARIADNE Info
Source url:
https://cdn.kastatic.org/KA-youtube-converted/Q35CH9B3tvc.mp4/Q35CH9B3tvc.mp4
ARIADNE ID:
up2u_KHAN_ACADEMY_xdee811c3
ARIADNE provider:
KHAN_ACADEMY
ARIADNE repository:
K12
ARIADNE license:
Creative Commons Attribution/Non-Commercial/Share-Alike


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