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©2026 数学クラブ http://sugaku.club/
月 日( )
● 次の式を計算しなさい
[1A0-00]
(1)
2
(
2
x
y
−
7
x
)
÷
x
(2)
7
(
6
p
q
+
7
p
)
p
(3)
5
(
5
u
+
10
v
)
(4)
9
(
p
q
+
10
p
)
p
(5)
9
(
8
a
+
2
)
(6)
8
(
5
u
+
6
v
)
(7)
2
(
5
a
+
5
b
−
2
)
(8)
9
(
4
p
+
4
q
+
2
)
(9)
7
(
2
p
q
−
10
p
)
÷
p
(10)
6
q
(
3
p
+
4
)
(11)
6
(
4
p
+
5
q
+
6
)
(12)
4
(
x
−
8
y
)
(13)
5
(
3
a
b
−
7
a
)
÷
a
(14)
3
(
6
a
b
+
4
a
)
a
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
2
(
2
x
y
−
7
x
)
÷
x
=
4
y
−
14
(2)
7
(
6
p
q
+
7
p
)
p
=
42
q
+
49
(3)
5
(
5
u
+
10
v
)
=
25
u
+
50
v
(4)
9
(
p
q
+
10
p
)
p
=
9
q
+
90
(5)
9
(
8
a
+
2
)
=
72
a
+
18
(6)
8
(
5
u
+
6
v
)
=
40
u
+
48
v
(7)
2
(
5
a
+
5
b
−
2
)
=
10
a
+
10
b
−
4
(8)
9
(
4
p
+
4
q
+
2
)
=
36
p
+
36
q
+
18
(9)
7
(
2
p
q
−
10
p
)
÷
p
=
14
q
−
70
(10)
6
q
(
3
p
+
4
)
=
18
p
q
+
24
q
(11)
6
(
4
p
+
5
q
+
6
)
=
24
p
+
30
q
+
36
(12)
4
(
x
−
8
y
)
=
4
x
−
32
y
(13)
5
(
3
a
b
−
7
a
)
÷
a
=
15
b
−
35
(14)
3
(
6
a
b
+
4
a
)
a
=
18
b
+
12