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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 次の計算をしましょう
[162-00]
(1)
2
4
x
y
÷
(
−4
y
z
)
(2)
4
15
y
÷
(
3
y
)
(3)
3
4
−12
v
÷
(
−2
u
)
(4)
2
−21
p
÷
(
7
q
r
)
(5)
3
12
v
÷
(
6
v
)
(6)
2
−18
q
÷
(
9
q
)
(7)
3
2
24
w
÷
(
3
u
)
(8)
2
4
−30
v
÷
(
−10
v
)
(9)
3
3
63
u
v
÷
(
−9
v
w
)
(10)
4
−56
a
b
÷
(
−8
a
)
(11)
4
2
80
p
÷
(
8
p
)
(12)
4
2
4
v
÷
(
−4
u
v
)
(13)
−21
u
÷
(
−3
u
)
(14)
4
2
2
35
v
÷
(
7
v
w
)
(15)
2
−18
a
b
÷
(
−2
b
)
(16)
4
3
4
−56
u
÷
(
−7
u
v
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
4
x
y
÷
(
−4
y
z
)
2
4
x
y
2
x
=
=
−
−4
y
z
z
(2)
4
15
y
÷
(
3
y
)
4
15
y
3
=
=
5
y
3
y
(3)
3
4
−12
v
÷
(
−2
u
)
3
−12
v
3
6
v
=
=
4
−2
u
4
u
(4)
2
−21
p
÷
(
7
q
r
)
−21
p
3
p
=
=
−
2
7
q
r
2
q
r
(5)
3
12
v
÷
(
6
v
)
12
v
2
=
=
3
6
v
2
v
(6)
2
−18
q
÷
(
9
q
)
−18
q
2
=
=
−
2
9
q
q
(7)
3
2
24
w
÷
(
3
u
)
3
24
w
3
8
w
=
=
2
3
u
2
u
(8)
2
4
−30
v
÷
(
−10
v
)
2
−30
v
3
=
=
4
−10
v
2
v
(9)
3
3
63
u
v
÷
(
−9
v
w
)
3
3
63
u
v
3
2
7
u
v
=
=
−
−9
v
w
w
(10)
4
−56
a
b
÷
(
−8
a
)
−56
a
b
7
b
=
=
4
−8
a
3
a
(11)
4
2
80
p
÷
(
8
p
)
4
80
p
2
=
=
10
p
2
8
p
(12)
4
2
4
v
÷
(
−4
u
v
)
4
4
v
3
v
=
=
−
2
−4
u
v
2
u
(13)
−21
u
÷
(
−3
u
)
−21
u
=
=
7
−3
u
(14)
4
2
2
35
v
÷
(
7
v
w
)
4
35
v
2
5
v
=
=
2
2
7
v
w
2
w
(15)
2
−18
a
b
÷
(
−2
b
)
−18
a
b
9
a
=
=
2
−2
b
b
(16)
4
3
4
−56
u
÷
(
−7
u
v
)
4
−56
u
8
u
=
=
3
4
−7
u
v
4
v