Question

27.38-5.34+2.62-4.66怎样简便计算

还有：
15.7-4.3+3.54+4.3
我要简便计算公式

Answer 1

27.38-5.34+2.62-4.66=（启猜渣兆瞎27.38+2.62）悄悄-（5.34+4.66）=30-10=20
15.7-4.3+3.54+4.3=15.7+3.54+(4.3-4.3)=15.7+3.54=19.24

Answer 2

27.38-5.34+2.62-4.66
＝（27.38+2.62）-（5.34+4.66）
＝饥稿蔽敬册30-10
＝20

15.7-4.3+3.54+4.3
＝烂州15.7+3.54+4.3-4.3
＝15.7+3.54
＝19.24

Answer 3

=27.38+2.62-(5.34+4.66)
=5-10
=5

第一题=（27.38+2.62）-（纯或5.34+4.66）=30-10=20
第二题 =15.7+3.54+（4.3-4.3）=19.24

15.7-4.3+3.54+4.3=15.7+3.54-4.3+4.3=19.24
27.38-5.34+2.62-4.66=27.38+2.62-5.34-4.66=30-（悔告5.34+4.66）=30-10=20

2010-10-17 16:50
27.38-5.34+2.62-4.66
＝（27.38+2.62）-（5.34+4.66）
＝30-10
＝20

15.7-4.3+3.54+4.3
＝做前伍15.7+3.54+4.3-4.3
＝15.7+3.54
＝19.24

Answer 4

15.7-4.3+3.54+4.3=15.7+3.54-4.3+4.3=19.24
27.38-5.34+2.62-4.66=27.38+2.62-5.34-4.66=30-（仿银5.34+4.66）备帆宴轿御=30-10=20

Answer 5

第一题=（27.38+2.62）-（5.34+4.66）=30-10=20
第二题 =15.7+3.54+（4.3-4.3）裤启=19.24
第二题你差梁是不是题目写错了？胡庆如