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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
x
y
+
9
x
3
x
(2)
4
(
3
x
−
1
)
(3)
10
(
8
u
v
+
u
)
÷
u
(4)
8
q
(
9
p
+
3
)
(5)
7
(
p
+
9
q
)
(6)
7
(
4
p
+
5
q
+
2
)
(7)
2
b
(
4
a
−
4
)
(8)
5
(
4
a
−
2
b
−
6
)
(9)
8
x
y
+
5
x
7
x
(10)
4
(
3
p
+
3
)
(11)
8
(
10
a
+
10
b
−
4
)
(12)
3
(
4
u
v
−
9
u
)
÷
u
(13)
8
(
6
a
b
+
4
a
)
a
(14)
6
p
q
+
3
p
7
p
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
2
x
y
+
9
x
3
x
=
6
y
+
27
(2)
4
(
3
x
−
1
)
=
12
x
−
4
(3)
10
(
8
u
v
+
u
)
÷
u
=
80
v
+
10
(4)
8
q
(
9
p
+
3
)
=
72
p
q
+
24
q
(5)
7
(
p
+
9
q
)
=
7
p
+
63
q
(6)
7
(
4
p
+
5
q
+
2
)
=
28
p
+
35
q
+
14
(7)
2
b
(
4
a
−
4
)
=
8
a
b
−
8
b
(8)
5
(
4
a
−
2
b
−
6
)
=
20
a
−
10
b
−
30
(9)
8
x
y
+
5
x
7
x
=
56
y
+
35
(10)
4
(
3
p
+
3
)
=
12
p
+
12
(11)
8
(
10
a
+
10
b
−
4
)
=
80
a
+
80
b
−
32
(12)
3
(
4
u
v
−
9
u
)
÷
u
=
12
v
−
27
(13)
8
(
6
a
b
+
4
a
)
a
=
48
b
+
32
(14)
6
p
q
+
3
p
7
p
=
42
q
+
21