Regrouping lab
Pile up ones, tens, and hundreds — then trade ten-for-one until every pile is under 10.
1 Regrouping lab
Pile up ones, tens, and hundreds — then trade ten-for-one until every pile is under 10.
Pile up ones, tens, and hundreds — then trade ten-for-one until every pile is under 10.
Pile up ones, tens, and hundreds — then trade ten-for-one until every pile is under 10.