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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の計算をしましょう
[162-00]
(1)
2
100
a
÷
(
−10
b
)
(2)
3
4
x
y
÷
(
−4
y
)
(3)
4
3
10
c
÷
(
2
b
)
(4)
3
2
4
12
p
q
÷
(
−4
p
q
)
(5)
3
2
30
y
z
÷
(
5
x
)
(6)
4
2
40
u
v
÷
(
−4
u
)
(7)
4
2
−16
a
÷
(
−2
a
b
)
(8)
2
2
40
v
w
÷
(
10
u
v
)
(9)
2
−63
b
c
÷
(
−9
b
)
(10)
3
4
8
a
÷
(
4
b
c
)
(11)
4
2
48
y
÷
(
−8
z
)
(12)
3
3
40
a
÷
(
10
c
)
(13)
2
3
−15
b
÷
(
5
b
)
(14)
4
50
a
÷
(
5
b
)
(15)
4
−7
q
r
÷
(
7
q
)
(16)
3
2
−36
b
÷
(
−4
b
c
)
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
100
a
÷
(
−10
b
)
100
a
10
a
=
=
−
2
−10
b
2
b
(2)
3
4
x
y
÷
(
−4
y
)
4
x
y
x
=
=
−
3
−4
y
2
y
(3)
4
3
10
c
÷
(
2
b
)
4
10
c
4
5
c
=
=
3
2
b
3
b
(4)
3
2
4
12
p
q
÷
(
−4
p
q
)
3
12
p
q
3
p
=
=
−
2
4
−4
p
q
3
q
(5)
3
2
30
y
z
÷
(
5
x
)
3
30
y
z
3
6
y
z
=
=
2
5
x
2
x
(6)
4
2
40
u
v
÷
(
−4
u
)
4
40
u
v
4
10
v
=
=
−
2
−4
u
u
(7)
4
2
−16
a
÷
(
−2
a
b
)
−16
a
8
=
=
4
2
−2
a
b
3
2
a
b
(8)
2
2
40
v
w
÷
(
10
u
v
)
2
2
40
v
w
2
4
v
w
=
=
10
u
v
u
(9)
2
−63
b
c
÷
(
−9
b
)
2
−63
b
c
2
=
=
7
c
−9
b
(10)
3
4
8
a
÷
(
4
b
c
)
3
8
a
3
2
a
=
=
4
4
b
c
4
b
c
(11)
4
2
48
y
÷
(
−8
z
)
4
48
y
4
6
y
=
=
−
2
−8
z
2
z
(12)
3
3
40
a
÷
(
10
c
)
3
40
a
3
4
a
=
=
3
10
c
3
c
(13)
2
3
−15
b
÷
(
5
b
)
2
−15
b
3
=
=
−
3
5
b
b
(14)
4
50
a
÷
(
5
b
)
50
a
10
a
=
=
4
5
b
4
b
(15)
4
−7
q
r
÷
(
7
q
)
4
−7
q
r
4
=
=
−
r
7
q
(16)
3
2
−36
b
÷
(
−4
b
c
)
−36
b
9
=
=
3
2
−4
b
c
2
2
b
c