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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
(
5
p
+
4
)
(2)
8
(
6
a
b
+
9
a
)
÷
a
(3)
3
(
4
u
+
7
)
(4)
6
(
u
+
7
)
(5)
6
(
3
x
y
+
3
x
)
÷
x
(6)
9
(
7
p
+
4
q
)
(7)
8
(
p
q
+
8
p
)
÷
p
(8)
5
(
4
x
y
−
2
x
)
x
(9)
2
p
q
+
7
p
3
p
(10)
9
(
a
+
5
b
)
(11)
7
(
3
p
q
−
3
p
)
p
(12)
10
(
2
x
+
4
)
(13)
3
p
q
+
6
p
6
p
(14)
5
(
2
x
+
2
y
)
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
5
(
5
p
+
4
)
=
25
p
+
20
(2)
8
(
6
a
b
+
9
a
)
÷
a
=
48
b
+
72
(3)
3
(
4
u
+
7
)
=
12
u
+
21
(4)
6
(
u
+
7
)
=
6
u
+
42
(5)
6
(
3
x
y
+
3
x
)
÷
x
=
18
y
+
18
(6)
9
(
7
p
+
4
q
)
=
63
p
+
36
q
(7)
8
(
p
q
+
8
p
)
÷
p
=
8
q
+
64
(8)
5
(
4
x
y
−
2
x
)
x
=
20
y
−
10
(9)
2
p
q
+
7
p
3
p
=
6
q
+
21
(10)
9
(
a
+
5
b
)
=
9
a
+
45
b
(11)
7
(
3
p
q
−
3
p
)
p
=
21
q
−
21
(12)
10
(
2
x
+
4
)
=
20
x
+
40
(13)
3
p
q
+
6
p
6
p
=
18
q
+
36
(14)
5
(
2
x
+
2
y
)
=
10
x
+
10
y