问题
解答题
(1)|-3|×|-6.2| (2)|-5|+|-2.49| (3)-|-
(4)|-
|
答案
(1)原式=3×6.2
=18.6;
(2)原式=5+2.49
=7.49;
(3)原式=-
;3 8
(4)原式=
×2 3 3 14
=
.1 7
(1)|-3|×|-6.2| (2)|-5|+|-2.49| (3)-|-
(4)|-
|
(1)原式=3×6.2
=18.6;
(2)原式=5+2.49
=7.49;
(3)原式=-
;3 8
(4)原式=
×2 3 3 14
=
.1 7