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脱式计算,注意使用简便方法①22+55÷11-28②17+33.5+67-3.5③7.09-512+12.03-712.

题目详情
脱式计算,注意使用简便方法
①22+55÷11-
2
8
1
7
+33.5+
6
7
-3.5
③7.09-
5
12
+12.03-
7
12
脱式计算,注意使用简便方法
①22+55÷11-
2
8
1
7
+33.5+
6
7
-3.5
③7.09-
5
12
+12.03-
7
12
脱式计算,注意使用简便方法
①22+55÷11-
2
8
1
7
+33.5+
6
7
-3.5
③7.09-
5
12
+12.03-
7
12
脱式计算,注意使用简便方法
①22+55÷11-
2
8

2
8
2
8
2288②
1
7
+33.5+
6
7
-3.5
1
7
+33.5+
6
7
-3.5
1
7
1177
6
7
-3.5
6
7
6677③7.09-
5
12
+12.03-
7
12
5
12
+12.03-
7
12
5
12
551212
7
12
7
12
771212
▼优质解答
答案和解析
(1)22+55÷11-
2
8

=22+5-
2
8

=27-
2
8

=26
3
4


(2)
1
7
+33.5+
6
7
-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
2
8
222888,
=22+5-
2
8

=27-
2
8

=26
3
4


(2)
1
7
+33.5+
6
7
-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
2
8
222888,
=27-
2
8

=26
3
4


(2)
1
7
+33.5+
6
7
-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
2
8
222888,
=26
3
4


(2)
1
7
+33.5+
6
7
-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
3
4
333444;

(2)
1
7
+33.5+
6
7
-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
1
7
111777+33.5+
6
7
-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
6
7
666777-3.5,
=(
1
7
+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
1
7
111777+
6
7
)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
6
7
666777)+(33.5-3.5),
=1+30,
=31;

(3)7.09-
5
12
+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
5
12
555121212+12.03-
7
12

=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
7
12
777121212,
=(7.09+12.03)-(
5
12
+
7
12
),
=19.12-1,
=18.12.
5
12
555121212+
7
12
),
=19.12-1,
=18.12.
7
12
777121212),
=19.12-1,
=18.12.