计算:(1) (-1 1 2 )-1 1 4 +2.5-(+3 3 4 )-(-1.25) (2) - 2 2 ×(-
计算:(1)(-112)-114+2.5-(+334)-(-1.25)(2)-22×(-13)+(-3)3÷214×(-23)2(3)-36×(79-56+34)-8÷(...
计算:(1) (-1 1 2 )-1 1 4 +2.5-(+3 3 4 )-(-1.25) (2) - 2 2 ×(- 1 3 )+(-3 ) 3 ÷2 1 4 ×(- 2 3 ) 2 (3) -36×( 7 9 - 5 6 + 3 4 )-8÷(-2) .
展开
1个回答
展开全部
(1)(-1
=-1
=1-3
=-2
(2)-2 2 ×(-
=-4×(-
=
=-4; (3)-36×(
=-(36×
=-(28-30+27)+4 =-25+4 =-21. |
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询