344+607=225+626=187+147=236+505=734-677=973-843=912-447=716+251=791-575=783+141=3×334=11×33=40×15=2×76...
344+607=225+626=187+147=236+505=734—677=973—843=912—447=716+251=791—575=783+141=3X334=11X33=40X15=2X76=651X5=529+263=658+111=4...