［文字サイズの変更］
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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
[161-00]
(1)
3
3
4
p
×
7
p
(2)
3
p
q
×
(
−9
)
p
(3)
2
2
3
x
y
×
9
y
z
(4)
3
3
x
×
(
−5
)
x
(5)
2
2
−9
p
×
(
−9
)
p
(6)
3
9
a
b
×
(
−6
)
b
(7)
2
3
−8
u
×
2
u
(8)
3
2
2
7
x
y
×
(
−6
)
x
(9)
3
2
2
10
a
b
×
2
a
(10)
3
2
4
p
×
(
−4
)
p
(11)
2
3
4
a
×
(
−9
)
a
(12)
2
3
2
10
x
y
×
(
−6
)
x
(13)
3
3
−8
a
×
(
−10
)
a
(14)
3
7
u
×
(
−7
)
u
(15)
2
2
3
u
×
(
−2
)
u
(16)
2
−10
u
v
×
(
−7
)
v
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
3
4
p
×
7
p
3
3
6
=
4
p
×
7
p
=
28
p
(2)
3
p
q
×
(
−9
)
p
2
=
3
p
q
×
(
−9
)
p
=
−27
p
q
(3)
2
2
3
x
y
×
9
y
z
2
2
2
3
=
3
x
y
×
9
y
z
=
27
x
y
z
(4)
3
3
x
×
(
−5
)
x
3
4
=
3
x
×
(
−5
)
x
=
−15
x
(5)
2
2
−9
p
×
(
−9
)
p
2
2
4
=
−9
p
×
(
−9
)
p
=
81
p
(6)
3
9
a
b
×
(
−6
)
b
3
4
=
9
a
b
×
(
−6
)
b
=
−54
a
b
(7)
2
3
−8
u
×
2
u
2
3
5
=
−8
u
×
2
u
=
−16
u
(8)
3
2
2
7
x
y
×
(
−6
)
x
3
2
2
5
2
=
7
x
y
×
(
−6
)
x
=
−42
x
y
(9)
3
2
2
10
a
b
×
2
a
3
2
2
5
2
=
10
a
b
×
2
a
=
20
a
b
(10)
3
2
4
p
×
(
−4
)
p
3
2
5
=
4
p
×
(
−4
)
p
=
−16
p
(11)
2
3
4
a
×
(
−9
)
a
2
3
5
=
4
a
×
(
−9
)
a
=
−36
a
(12)
2
3
2
10
x
y
×
(
−6
)
x
2
3
2
4
3
=
10
x
y
×
(
−6
)
x
=
−60
x
y
(13)
3
3
−8
a
×
(
−10
)
a
3
3
6
=
−8
a
×
(
−10
)
a
=
80
a
(14)
3
7
u
×
(
−7
)
u
3
4
=
7
u
×
(
−7
)
u
=
−49
u
(15)
2
2
3
u
×
(
−2
)
u
2
2
4
=
3
u
×
(
−2
)
u
=
−6
u
(16)
2
−10
u
v
×
(
−7
)
v
2
3
=
−10
u
v
×
(
−7
)
v
=
70
u
v