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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)
3
(
8
a
+
8
b
+
2
)
(2)
6
(
4
u
v
+
10
u
)
÷
u
(3)
3
x
y
−
10
x
2
x
(4)
9
(
7
x
y
−
2
x
)
÷
x
(5)
8
(
6
a
b
+
2
a
)
÷
a
(6)
5
(
10
p
q
+
5
p
)
÷
p
(7)
9
p
q
+
6
p
2
p
(8)
5
(
6
a
+
6
b
+
3
)
(9)
6
(
7
p
+
2
q
−
9
)
(10)
9
(
10
x
y
+
2
x
)
x
(11)
7
(
7
a
b
+
5
a
)
a
(12)
2
x
y
+
4
x
8
x
(13)
7
q
(
8
p
+
7
)
(14)
5
(
10
u
+
8
)
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
(
8
a
+
8
b
+
2
)
=
24
a
+
24
b
+
6
(2)
6
(
4
u
v
+
10
u
)
÷
u
=
24
v
+
60
(3)
3
x
y
−
10
x
2
x
=
6
y
−
20
(4)
9
(
7
x
y
−
2
x
)
÷
x
=
63
y
−
18
(5)
8
(
6
a
b
+
2
a
)
÷
a
=
48
b
+
16
(6)
5
(
10
p
q
+
5
p
)
÷
p
=
50
q
+
25
(7)
9
p
q
+
6
p
2
p
=
18
q
+
12
(8)
5
(
6
a
+
6
b
+
3
)
=
30
a
+
30
b
+
15
(9)
6
(
7
p
+
2
q
−
9
)
=
42
p
+
12
q
−
54
(10)
9
(
10
x
y
+
2
x
)
x
=
90
y
+
18
(11)
7
(
7
a
b
+
5
a
)
a
=
49
b
+
35
(12)
2
x
y
+
4
x
8
x
=
16
y
+
32
(13)
7
q
(
8
p
+
7
)
=
56
p
q
+
49
q
(14)
5
(
10
u
+
8
)
=
50
u
+
40