2 3 + 1 4 ÷ 3 4 + 1 4 = 15÷ 1 15 × 1 15 = 0.125÷ 1 8 ÷ 7 9 =

2
3
+
1
4
÷
3
4
+
1
4
=
15÷
1
15
×
1
15
=
0.125÷
1
8
÷
7
9
=
8
9
÷
1
18
=
0.68+
2
3
+0.32
=
2
5
×5÷
2
5
×5
=
5
7
×10+10×
2
7
=
0.3 3 =
1÷7×24= 5-1.4-1.6=
malin_ccc 1年前 已收到1个回答 举报

pfty 幼苗

共回答了15个问题采纳率:93.3% 举报

(1)
2
3 +
1
4 ÷
3
4 +
1
4 ,
=
3
4 +
1
3 +
1
4 ,
=1
1
4 ;

(2) 15÷
1
15 ×
1
15 ,
=15×15×
1
15 ,
=15;

(3) 0.125÷
1
8 ÷
7
9 ,
=
1
8 × 8×
9
7 ,
=1
2
7 ;

(4) 0÷
8
9 ÷
1
18 =0;

(5) 0.68+
2
3 +0.32 ,
=(0.68+0.32) +
2
3 ,
=1 +
2
3 ,
=1
2
3 ;

(6)
2
5 ×5÷
2
5 ×5 ,
=
2
5 ×5×
5
2 ×5 ,
=25;

(7)
5
7 ×10+10×
2
7 ,
=(
5
7 +
2
7 )×10,
=1×10,
=10;

(8)0.3 3
=0.3×0.3×0.3,
=0.027;

(9)1÷7×24,
=
1
7 ×24 ,
=3
3
7 ;

(10)5-1.4-1.6,
=5-(1.4+1.6),
=5-3,
=2.

1年前

6
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