问题
解答题
|
答案
(1)560+62×230÷31,
=560+62÷31×230,
=560+2×230,
=560+460,
=1020;
(2)3.8-1.9+7.2-8.1,
=3.8+7.2-(1.9+8.1),
=11-10,
=1;
(3)50.16×
-0.16×4 25
,4 25
=(50.16-0.16)×
,4 25
=50×
,4 25
=8;
(4)6-(
-1 2
)×36,1 3
=6-(
×36-1 2
×36),1 3
=6-18+12,
=0.