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2.5-
1
5
=
1
3
+0.25
=
0.25×99+0.25= 24×(
5
12
+
3
8
)
=
4
3
7
-(3.75-1
4
7
)
=
5
6
×(
5
8
-0.625)
=
14
9
×
3
7
÷
10
9
=
1
4
×8÷
1
4
×8
=
100÷
1
4
×4-100
=
8×3.2+8×6.8=
2.5-
1
5
=2.3
1
3
+0.25
=
7
12
0.25×99+0.25=25 24×(
5
12
+
3
8
)
=19
4
3
7
-(3.75-1
4
7
)
=2.25
5
6
×(
5
8
-0.625)
=0
14
9
×
3
7
÷
10
9
=
3
5
1
4
×8÷
1
4
×8
=64
100÷
1
4
×4-100
=1500
8×3.2+8×6.8=80
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