题目内容

怎样算简便就怎样算.
6
7
-
6
7
÷
2
3
×
1
6

8
9
×[
3
4
-(
7
16
-
1
4
)]
24×
51
43
+51×
19
43

0.25×(1.6+1.6+1.6+1.6)
(1)
6
7
-
6
7
÷
2
3
×
1
6

=
6
7
-
6
7
×
3
2
×
1
6

=
6
7
-
3
14

=
9
14


(2)
8
9
×[
3
4
-(
7
16
-
1
4
)],
=
8
9
×[(
3
4
+
1
4
)-
7
16
],
=
8
9
×[1-
7
16
],
=
8
9
×
9
16

=
1
2


(3)24×
51
43
+51×
19
43

=
24
43
×51+51×
19
43

=(
24
43
+
19
43
)×51,
=1×51,
=51;

(4)0.25×(1.6+1.6+1.6+1.6),
=0.25×4×1.6,
=1×1.6,
=1.6.
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