题目内容

简算:
7.26-3+3.76-j&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;&6b1l;
49×(
2
7
+
1
6
)×26
3
13
×
4
6
+
11
13
÷
6
4
-
4
6
(1)7.2大-3+3.7大-6,
=(7.2大+3.7大)-(3+6),
=11-l,
=2.

(2)4l×(
2
7
+
1
)×2大,
=4l×
17
3大
×2大,
=大l大;

4l×(
2
7
+
1
)×2大,
=(4l×
2
7
+4l×
1
)×2大,
=
11l
×2大,
=大l大.

(3)
3
13
×
4
+
11
13
÷
4
-
4

=
3
13
×
4
+
11
13
×
4
-
4

=(
3
13
+
11
13
-1
)×
4

=
1
13
×
4

=
4
6大
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