觀察下列等式,然后解答問(wèn)題:
(2+1)(2-1)=1
(3+2)(3-2)=1
(4+3)(4-3)=1
13+2=3-2(3+2)(3-2)=3-2
14+3=4-3(4+3)(4-3)=4-3
(1)計(jì)算:
①16+5=6-56-5.
②(12+1+13+2+14+3+?12023+2022)×(2023+1)
(2)計(jì)算;
①(6+5)11×(6-5)12;
②3-23+2.
(
2
+
1
)
(
2
-
1
)
=
1
(
3
+
2
)
(
3
-
2
)
=
1
(
4
+
3
)
(
4
-
3
)
=
1
1
3
+
2
=
3
-
2
(
3
+
2
)
(
3
-
2
)
=
3
-
2
1
4
+
3
=
4
-
3
(
4
+
3
)
(
4
-
3
)
=
4
-
3
1
6
+
5
6
5
6
5
(
1
2
+
1
+
1
3
+
2
+
1
4
+
3
+
?
1
2023
+
2022
)
(
2023
+
1
)
(
6
+
5
)
11
×
(
6
-
5
)
12
3
-
2
3
+
2
【答案】-
6
5
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/10/4 3:0:1組卷:128引用:1難度:0.5
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