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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)
x
y
+
x
8
x
(2)
5
v
(
7
u
−
3
)
(3)
10
(
2
p
q
−
9
p
)
÷
p
(4)
10
(
7
a
+
3
b
)
(5)
7
(
5
x
−
9
)
(6)
5
u
v
+
5
u
10
u
(7)
7
(
a
b
+
3
a
)
a
(8)
8
u
v
+
7
u
9
u
(9)
8
(
6
a
b
+
10
a
)
a
(10)
9
(
8
u
v
+
5
u
)
u
(11)
7
(
6
x
y
−
2
x
)
÷
x
(12)
4
(
4
u
v
+
6
u
)
÷
u
(13)
2
u
v
+
u
2
u
(14)
3
(
4
u
v
−
5
u
)
÷
u
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
x
y
+
x
8
x
=
8
y
+
8
(2)
5
v
(
7
u
−
3
)
=
35
u
v
−
15
v
(3)
10
(
2
p
q
−
9
p
)
÷
p
=
20
q
−
90
(4)
10
(
7
a
+
3
b
)
=
70
a
+
30
b
(5)
7
(
5
x
−
9
)
=
35
x
−
63
(6)
5
u
v
+
5
u
10
u
=
50
v
+
50
(7)
7
(
a
b
+
3
a
)
a
=
7
b
+
21
(8)
8
u
v
+
7
u
9
u
=
72
v
+
63
(9)
8
(
6
a
b
+
10
a
)
a
=
48
b
+
80
(10)
9
(
8
u
v
+
5
u
)
u
=
72
v
+
45
(11)
7
(
6
x
y
−
2
x
)
÷
x
=
42
y
−
14
(12)
4
(
4
u
v
+
6
u
)
÷
u
=
16
v
+
24
(13)
2
u
v
+
u
2
u
=
4
v
+
2
(14)
3
(
4
u
v
−
5
u
)
÷
u
=
12
v
−
15