题目内容

直接写出结果
2
3
-
1
2
=
4.5×102=
5
9
×6=
270÷18=
5-0.25+0.75=0.42-0.32=2÷
1
5
=
341-103=
13×(2+
7
13
)=
______:
1
7
=
1
7
10×10%=23.9÷8=
7×
1
7
÷7×
1
7
=
1÷
4
5
×
3
5
=
直接写出结果
2
3
-
1
2
=
1
6
,
4.5×102=459,
5
9
×6=
10
3
,
270÷18=15;
5-0.25+0.75=5.5,0.42-0.32=0.072÷
1
5
=10,
341-103=238;
13×(2+
7
13
)=33,
1
49
:
1
7
=
1
7
10×10%=123.9÷8=2.9875
7×
1
7
÷7×
1
7
=
1
49
,
1÷
4
5
×
3
5
=
3
4
.
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