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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)
5
(
8
a
b
−
10
a
)
a
(2)
4
(
2
u
+
6
v
−
9
)
(3)
4
(
8
x
+
2
y
+
1
)
(4)
2
(
5
u
−
v
)
(5)
8
q
(
5
p
+
7
)
(6)
7
(
5
p
−
8
q
)
(7)
6
(
u
+
6
)
(8)
2
(
4
p
−
4
)
(9)
2
(
9
x
+
10
y
+
3
)
(10)
3
(
4
p
q
+
10
p
)
p
(11)
6
(
7
u
v
+
4
u
)
u
(12)
2
(
3
a
b
+
6
a
)
÷
a
(13)
6
(
9
p
+
4
)
(14)
10
(
6
a
+
8
)
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
5
(
8
a
b
−
10
a
)
a
=
40
b
−
50
(2)
4
(
2
u
+
6
v
−
9
)
=
8
u
+
24
v
−
36
(3)
4
(
8
x
+
2
y
+
1
)
=
32
x
+
8
y
+
4
(4)
2
(
5
u
−
v
)
=
10
u
−
2
v
(5)
8
q
(
5
p
+
7
)
=
40
p
q
+
56
q
(6)
7
(
5
p
−
8
q
)
=
35
p
−
56
q
(7)
6
(
u
+
6
)
=
6
u
+
36
(8)
2
(
4
p
−
4
)
=
8
p
−
8
(9)
2
(
9
x
+
10
y
+
3
)
=
18
x
+
20
y
+
6
(10)
3
(
4
p
q
+
10
p
)
p
=
12
q
+
30
(11)
6
(
7
u
v
+
4
u
)
u
=
42
v
+
24
(12)
2
(
3
a
b
+
6
a
)
÷
a
=
6
b
+
12
(13)
6
(
9
p
+
4
)
=
54
p
+
24
(14)
10
(
6
a
+
8
)
=
60
a
+
80