问题
解答题
|
答案
(1)6760÷13+17×25,
=520+425,
=945;
(2)24×[(
-5 6
)×3],2 3
=24×[
×3],1 6
=24×
,1 2
=12;
(3)3.5÷[1.4×(0.1-0.05)],
=3.5÷[1.4×0.05],
=3.5÷0.07,
=50;
(4)
+[1 4
-(7 8
+3 4
)],1 8
=
+[1 4
-7 8
],7 8
=
+0,1 4
=
. 1 4