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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
b
(
7
a
+
2
)
(2)
9
(
10
u
v
+
6
u
)
u
(3)
8
(
5
u
v
−
u
)
÷
u
(4)
9
(
5
p
+
1
)
(5)
2
a
b
+
a
3
a
(6)
3
q
(
4
p
+
2
)
(7)
2
(
5
x
+
2
y
−
10
)
(8)
2
(
p
q
+
7
p
)
p
(9)
3
a
b
+
4
a
5
a
(10)
6
(
8
u
−
6
v
)
(11)
7
(
7
p
q
+
p
)
÷
p
(12)
5
u
v
−
6
u
2
u
(13)
3
(
3
a
+
3
b
)
(14)
2
p
q
+
9
p
2
p
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
b
(
7
a
+
2
)
=
21
a
b
+
6
b
(2)
9
(
10
u
v
+
6
u
)
u
=
90
v
+
54
(3)
8
(
5
u
v
−
u
)
÷
u
=
40
v
−
8
(4)
9
(
5
p
+
1
)
=
45
p
+
9
(5)
2
a
b
+
a
3
a
=
6
b
+
3
(6)
3
q
(
4
p
+
2
)
=
12
p
q
+
6
q
(7)
2
(
5
x
+
2
y
−
10
)
=
10
x
+
4
y
−
20
(8)
2
(
p
q
+
7
p
)
p
=
2
q
+
14
(9)
3
a
b
+
4
a
5
a
=
15
b
+
20
(10)
6
(
8
u
−
6
v
)
=
48
u
−
36
v
(11)
7
(
7
p
q
+
p
)
÷
p
=
49
q
+
7
(12)
5
u
v
−
6
u
2
u
=
10
v
−
12
(13)
3
(
3
a
+
3
b
)
=
9
a
+
9
b
(14)
2
p
q
+
9
p
2
p
=
4
q
+
18