题目内容

①1-
3
4
+
1
4
=
②1
1
3
×
3
4
=
③1÷0.05×1.2=④(
1
3
+
1
4
)×12=
⑤3.48+7.52=
⑥3.14÷
1
5
×20=
⑦1.25×
3
5
=
⑧12-
5
9
-
4
9
=
⑨390×0.01=
1
6
+
6
5
+
4
5
=
①1-
3
4
+
1
4
=
1
2
; ②1
1
3
×
3
4
=1;③1÷0.05×1.2=24;④(
1
3
+
1
4
)×12=7; ⑤3.48+7.52=11;
⑥3.14÷
1
5
×20=314; ⑦1.25×
3
5
=0.75; ⑧12-
5
9
-
4
9
=11; ⑨390×0.01=3.9; ⑩
1
6
+
6
5
+
4
5
=2
1
6

故答案为:
1
2
,1,24,7,11,314,0.75,11,3.9,2
1
6
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