①8.32×101-8.32,
=8.32×(101-1),
=8.32×100,
=832;
②6.75-1
+3.25-21 6
,5 6
=6.75+3.25-(1
+21 6
),5 6
=10-4,
=6;
③
×(2 3
+1 6
),1 3
=
×2 3
+1 6
×2 3
,1 3
=
+1 9
,2 9
=
,3 9
=
;1 3
④(
+25%)÷4 5
+0.7.7 3
=(
+4 5
)×1 4
+0.7,3 7
=
×21 20
+0.7,3 7
=
+0.7,9 20
=0.45+0.7,
=1.15.
这一题其实很简单的,把6.75×46-13点二五×46自己算去吧,答案等于460过程简