问题
解答题
|
答案
÷210 13
-119 22
×2 5
÷7+11 13
×1 5 22 63
=
÷10 13
-63 22
×7 5
÷7+11 13
×1 5
,22 63
=
×10 13
-22 63
÷ 7×7 5
+11 13
×1 5
,22 63
=(
+10 13
)×1 5
-22 63
×1 5
,11 13
=
×63 65
-22 63
,11 65
=
-22 65
,11 65
=
.11 65