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看谁算得又对又快34+14=2+49=3-23=34-12=16+12-16=7.5-(2.5+3.8)=78+38=310+15=45-410=2-16-13=0.51÷17=32.8+19=5.2÷1.3=1.6×0.4=4.9×0.7=1÷5=6÷12=0.87-0.49=32.8+19=5.2÷1.3=

题目详情
看谁算得又对又快
3
4
+
1
4
=
2+
4
9
=
3-
2
3
=
3
4
-
1
2
=
1
6
+
1
2
-
1
6
=
7.5-(2.5+3.8)=
7
8
+
3
8
=
3
10
+
1
5
=
4
5
-
4
10
=
2-
1
6
-
1
3
=
0.51÷17=32.8+19=5.2÷1.3=1.6×0.4=4.9×0.7=
1÷5=6÷12=0.87-0.49=32.8+19=5.2÷1.3=
▼优质解答
答案和解析
3
4
+
1
4
=1
2+
4
9
=2
4
9
3-
2
3
=2
1
3
3
4
-
1
2
=
1
4
1
6
+
1
2
-
1
6
=
1
2
7.5-(2.5+3.8)=1.2
7
8
+
3
8
=1
1
4
3
10
+
1
5
=
1
2
4
5
-
4
10
=
2
5
2-
1
6
-
1
3
=1.5
0.51÷17=0.0332.8+19=51.85.2÷1.3=41.6×0.4=0.644.9×0.7=3.43
1÷5=0.26÷12=0.50.87-0.49=0.3832.8+19=51.85.2÷1.3=4