问题
解答题
|
答案
①
|
=0.125×(0.6-0.5),
=0.125×0.1,
=0.0125;
②3.2+(9.2-3.8)÷
,1 2
=3.2+5.4×2,
=3.2+10.8,
=14;
③17.6-8.2-2.8,
=17.6-(8.2+2.8),
=17.6-11,
=6.6;
④
+1 9
÷1 8
+3 4
,8 9
=
+1 9
×1 8
+4 3
,8 9
=(
+1 9
)+8 9
,1 6
=1+
,1 6
=1
;1 6
⑤(
+0.2)×1 3
÷(3-0.5),7 8
=(
+1 3
)×1 5
÷2.5,7 8
=
×8 15
×7 8
,2 5
=
;14 75
⑥97×
,95 98
=(98-1)×
,95 98
=98×
-95 98
,95 98
=95-
,95 98
=94
.3 98