问题
解答题
计算: (1)|8|+|+5|; (2)
(3)|-
(4)|-
|
答案
(1)原式=8+5=13;
(2)原式=
-9 14
=8 14
;1 14
(3)原式=
×6=3;1 2
(4)原式=
×5÷1 10
=7 2
×1 2
=2 7
.1 7
计算: (1)|8|+|+5|; (2)
(3)|-
(4)|-
|
(1)原式=8+5=13;
(2)原式=
-9 14
=8 14
;1 14
(3)原式=
×6=3;1 2
(4)原式=
×5÷1 10
=7 2
×1 2
=2 7
.1 7