They are counting 8 + 5 by folding their fingers.By the time they have folded 8 fingers, there are only 2 fingers left. With ...
This is the one-hour preparatory lesson before starting addition with carrying.This is all I wrote on the blackboard.7 + □ + 6“Which number from 0 to 9 should we put in the box to make it easy?”For ...
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