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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
a
b
−
7
a
10
a
(2)
6
(
6
x
y
+
9
x
)
÷
x
(3)
4
(
9
x
+
5
)
(4)
3
(
2
a
−
4
b
)
(5)
9
(
a
b
+
5
a
)
÷
a
(6)
8
(
6
p
+
5
q
)
(7)
9
(
9
a
b
−
9
a
)
a
(8)
7
(
2
u
v
−
8
u
)
u
(9)
2
(
6
x
+
y
)
(10)
6
(
10
u
v
−
7
u
)
÷
u
(11)
5
(
10
u
v
+
2
u
)
÷
u
(12)
5
(
3
a
b
−
6
a
)
÷
a
(13)
3
(
8
p
+
10
)
(14)
3
(
6
u
v
−
9
u
)
÷
u
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
a
b
−
7
a
10
a
=
30
b
−
70
(2)
6
(
6
x
y
+
9
x
)
÷
x
=
36
y
+
54
(3)
4
(
9
x
+
5
)
=
36
x
+
20
(4)
3
(
2
a
−
4
b
)
=
6
a
−
12
b
(5)
9
(
a
b
+
5
a
)
÷
a
=
9
b
+
45
(6)
8
(
6
p
+
5
q
)
=
48
p
+
40
q
(7)
9
(
9
a
b
−
9
a
)
a
=
81
b
−
81
(8)
7
(
2
u
v
−
8
u
)
u
=
14
v
−
56
(9)
2
(
6
x
+
y
)
=
12
x
+
2
y
(10)
6
(
10
u
v
−
7
u
)
÷
u
=
60
v
−
42
(11)
5
(
10
u
v
+
2
u
)
÷
u
=
50
v
+
10
(12)
5
(
3
a
b
−
6
a
)
÷
a
=
15
b
−
30
(13)
3
(
8
p
+
10
)
=
24
p
+
30
(14)
3
(
6
u
v
−
9
u
)
÷
u
=
18
v
−
27