问题
解答题
列式计算 (1)从
(2)
|
答案
(1)
-4 5
+1 3 1 6
=
+7 15 1 6
=19 30
(2)
-(3 4
+2 5
)1 4
=0.75-0.65
=0.1
答:(1)和是
;(2)差是0.1.19 30
列式计算 (1)从
(2)
|
(1)
-4 5
+1 3 1 6
=
+7 15 1 6
=19 30
(2)
-(3 4
+2 5
)1 4
=0.75-0.65
=0.1
答:(1)和是
;(2)差是0.1.19 30