问题
解答题
计算:(+0.25)-(-3
|
答案
(+0.25)-(-3
)-(+51 8
)-(+3 4
),1 4
=0.25+3
-51 8
-0.25,3 4
=(0.25-0.25)-(5
-33 4
),1 8
=-(5
-36 8
),1 8
=-2
.5 8
计算:(+0.25)-(-3
|
(+0.25)-(-3
)-(+51 8
)-(+3 4
),1 4
=0.25+3
-51 8
-0.25,3 4
=(0.25-0.25)-(5
-33 4
),1 8
=-(5
-36 8
),1 8
=-2
.5 8