脱式计算,能简算的要简算. 1050-265-435216+188+84+312306-19740×(140-115)355÷(103-98)246-38+6

2025-03-20 18:22:40
推荐回答(1个)
回答(1):

(1)1050-265-435
=1050-(265+435)
=1050-700
=350;

(2)216+188+84+312
=216+84+(188+312)
=300+500
=800;

(3)306-197
=306-200+3
=106+3
=109;

(4)40×(140-115)
=40×25
=1000;

(5)355÷(103-98)
=355÷5
=71;

(6)246-38+62
=208+62
=270.