已知○+△=□,●×▲=■,下面哪算式是正确的?正确的画“√”,错误的画“×”.
(1)△+□=○
(2)○+□=△
(3)□﹣○=△
(4)▲×■=●
(5)■÷●=▲
(6)■÷▲=● .
已知○+△=□,●×▲=■,下面哪算式是正确的?正确的画“√”,错误的画“×”.
(1)△+□=○
(2)○+□=△
(3)□﹣○=△
(4)▲×■=●
(5)■÷●=▲
(6)■÷▲=● .