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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)
7
q
(
6
p
+
8
)
(2)
4
(
5
x
+
7
y
)
(3)
5
(
5
x
y
+
8
x
)
x
(4)
3
(
7
a
+
8
b
)
(5)
8
(
9
a
+
6
)
(6)
10
q
(
5
p
+
8
)
(7)
2
(
5
p
−
8
q
)
(8)
2
(
9
a
b
+
5
a
)
a
(9)
4
(
3
p
−
5
q
+
1
)
(10)
7
q
(
3
p
−
10
)
(11)
4
a
b
+
2
a
3
a
(12)
5
(
a
+
8
b
+
9
)
(13)
9
(
x
+
6
y
)
(14)
5
a
b
+
3
a
6
a
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
7
q
(
6
p
+
8
)
=
42
p
q
+
56
q
(2)
4
(
5
x
+
7
y
)
=
20
x
+
28
y
(3)
5
(
5
x
y
+
8
x
)
x
=
25
y
+
40
(4)
3
(
7
a
+
8
b
)
=
21
a
+
24
b
(5)
8
(
9
a
+
6
)
=
72
a
+
48
(6)
10
q
(
5
p
+
8
)
=
50
p
q
+
80
q
(7)
2
(
5
p
−
8
q
)
=
10
p
−
16
q
(8)
2
(
9
a
b
+
5
a
)
a
=
18
b
+
10
(9)
4
(
3
p
−
5
q
+
1
)
=
12
p
−
20
q
+
4
(10)
7
q
(
3
p
−
10
)
=
21
p
q
−
70
q
(11)
4
a
b
+
2
a
3
a
=
12
b
+
6
(12)
5
(
a
+
8
b
+
9
)
=
5
a
+
40
b
+
45
(13)
9
(
x
+
6
y
)
=
9
x
+
54
y
(14)
5
a
b
+
3
a
6
a
=
30
b
+
18