1st Grade Math › Adding and Subtracting Within 20
To subtract we can count backwards. Start at and count back
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To subtract we can count backwards. Start at and count back
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To subtract we can count backwards. Start at and count back
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To add we count up. Start at and count up
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To subtract we can count backwards. Start at and count back
.
To add we count up. Start at and count up
.
To subtract we can count backwards. Start at and count back
.
To add we count up. Start at and count up
.
To add we count up. Start at and count up
.
To add we count up. Start at and count up
.