88899+777×3477-666+78
1) 777 * 3477= 2701629 2) 88899+ 2701629=2790528 3)2790528 - 666= 2789862 4)2789862 + 78 =2789940
1) 777*3477=2701629 2) 2701629+88899=2790528 3) 2790528-666=2789862 4) 2789862+78=2789940