매일 가져오는 수학숙제 ... 반은알겠고 반은 에케하라는 것인지...오늘도 부탁드립니다.              Play two-fisted penny addition with someone at home ;    1. put 10 peennies on the table.   2.grab some pennies with one hand.  pick up the rest with the other hand.   3. on a piece of paper, draw 2 large circles to show hands. place 1 pile of pennies in each circle.   4. count the pennies on each circle.   5.write how many pennies are on each circle.    6.take turns with your partner.    7. start with 10 pennies.  8. start with 15 pennies.