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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
[161-00]
(1)
3
4
p
q
×
3
q
(2)
3
3
−7
x
y
×
3
x
y
(3)
2
3
5
a
×
2
a
(4)
3
−5
p
q
×
(
−6
)
p
(5)
2
3
8
x
y
×
10
x
(6)
3
3
−4
x
y
×
(
−7
)
y
(7)
3
3
−6
x
×
9
x
(8)
2
2
2
−5
x
y
×
10
y
(9)
−4
x
y
×
(
−2
)
y
(10)
2
3
−7
x
×
(
−6
)
x
(11)
2
9
u
v
×
(
−2
)
u
(12)
3
3
2
7
p
q
×
4
p
q
(13)
2
2
8
a
b
×
(
−6
)
a
b
(14)
3
3
2
9
a
b
×
(
−7
)
a
b
(15)
2
2
9
u
v
×
5
v
(16)
2
3
p
×
(
−4
)
p
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
4
p
q
×
3
q
3
3
2
=
4
p
q
×
3
q
=
12
p
q
(2)
3
3
−7
x
y
×
3
x
y
3
3
4
4
=
−7
x
y
×
3
x
y
=
−21
x
y
(3)
2
3
5
a
×
2
a
2
3
5
=
5
a
×
2
a
=
10
a
(4)
3
−5
p
q
×
(
−6
)
p
3
4
=
−5
p
q
×
(
−6
)
p
=
30
p
q
(5)
2
3
8
x
y
×
10
x
2
3
4
2
=
8
x
y
×
10
x
=
80
x
y
(6)
3
3
−4
x
y
×
(
−7
)
y
3
3
3
4
=
−4
x
y
×
(
−7
)
y
=
28
x
y
(7)
3
3
−6
x
×
9
x
3
3
6
=
−6
x
×
9
x
=
−54
x
(8)
2
2
2
−5
x
y
×
10
y
2
2
2
2
4
=
−5
x
y
×
10
y
=
−50
x
y
(9)
−4
x
y
×
(
−2
)
y
2
=
−4
x
y
×
(
−2
)
y
=
8
x
y
(10)
2
3
−7
x
×
(
−6
)
x
2
3
5
=
−7
x
×
(
−6
)
x
=
42
x
(11)
2
9
u
v
×
(
−2
)
u
2
3
=
9
u
v
×
(
−2
)
u
=
−18
u
v
(12)
3
3
2
7
p
q
×
4
p
q
3
3
2
5
4
=
7
p
q
×
4
p
q
=
28
p
q
(13)
2
2
8
a
b
×
(
−6
)
a
b
2
2
3
3
=
8
a
b
×
(
−6
)
a
b
=
−48
a
b
(14)
3
3
2
9
a
b
×
(
−7
)
a
b
3
3
2
5
4
=
9
a
b
×
(
−7
)
a
b
=
−63
a
b
(15)
2
2
9
u
v
×
5
v
2
2
2
3
=
9
u
v
×
5
v
=
45
u
v
(16)
2
3
p
×
(
−4
)
p
2
3
=
3
p
×
(
−4
)
p
=
−12
p