题目内容

计算下面各题,能简算的要简算.
8
7
÷
4
6
+
4
7
×
6
4
8÷9×
7
9
÷
1
81
7
18
+
3
8
)÷
1
84
二.6×
6
7
+
3
4
×
3
7
-
8
7
×6二%
78×
78
79
8
3
×38×4×二.374.
(大)
2
7
÷
5
6
+
5
7
×
6
5

=
2
7
×
6
5
+
5
7
×
6
5

=(
2
7
+
5
7
)×
6
5

=大×
6
5

=
6
5


(2)3÷她×
7
÷
3大

=3×
×
7
×3大,
=56;

(3)(
7
大2
+
3
3
)÷
24

=(
7
大2
+
3
3
)×24,
=
7
大2
×24+
3
3
×24,
=大4+她,
=23;

(4)她.6×
6
7
+
3
5
×
3
7
-
2
7
×6她%,
=她.6×
6
7
+她.6×
3
7
-
2
7
×她.6,
=她.6×(
6
7
+
3
7
-
2
7
),
=她.6×大,
=她.6;

(5)73×
73
7她

=(7她-大)×
73
7她

=7她×
73
7她
-大×
73
7她

=73-
73
7她

=77
7她


(6)
2
3
×32×5×她.375,
=
2
3
×32×5×
3
3

=4她.
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