［文字サイズの変更］
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©2018 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
−6
a
×
8
a
(2)
2
−5
p
q
×
(
−5
)
p
(3)
3
3
3
x
×
(
−2
)
x
(4)
2
3
2
p
×
2
p
(5)
2
3
8
p
×
4
p
(6)
2
2
−3
p
×
6
p
(7)
2
−6
p
q
×
5
q
(8)
3
3
2
8
x
y
×
7
y
(9)
3
−10
x
y
×
2
y
z
(10)
2
−8
a
b
×
(
−7
)
b
(11)
2
−5
x
y
×
2
x
(12)
3
5
x
y
×
(
−9
)
x
(13)
2
3
10
u
×
(
−8
)
u
(14)
3
3
−5
u
×
6
u
(15)
2
3
7
p
×
10
p
(16)
3
2
5
p
×
(
−3
)
p
©2018 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
3
−6
a
×
8
a
3
3
6
=
−6
a
×
8
a
=
−48
a
(2)
2
−5
p
q
×
(
−5
)
p
2
3
=
−5
p
q
×
(
−5
)
p
=
25
p
q
(3)
3
3
3
x
×
(
−2
)
x
3
3
6
=
3
x
×
(
−2
)
x
=
−6
x
(4)
2
3
2
p
×
2
p
2
3
5
=
2
p
×
2
p
=
4
p
(5)
2
3
8
p
×
4
p
2
3
5
=
8
p
×
4
p
=
32
p
(6)
2
2
−3
p
×
6
p
2
2
4
=
−3
p
×
6
p
=
−18
p
(7)
2
−6
p
q
×
5
q
2
2
2
=
−6
p
q
×
5
q
=
−30
p
q
(8)
3
3
2
8
x
y
×
7
y
3
3
2
3
5
=
8
x
y
×
7
y
=
56
x
y
(9)
3
−10
x
y
×
2
y
z
3
4
=
−10
x
y
×
2
y
z
=
−20
x
y
z
(10)
2
−8
a
b
×
(
−7
)
b
2
3
=
−8
a
b
×
(
−7
)
b
=
56
a
b
(11)
2
−5
x
y
×
2
x
2
3
=
−5
x
y
×
2
x
=
−10
x
y
(12)
3
5
x
y
×
(
−9
)
x
3
4
=
5
x
y
×
(
−9
)
x
=
−45
x
y
(13)
2
3
10
u
×
(
−8
)
u
2
3
5
=
10
u
×
(
−8
)
u
=
−80
u
(14)
3
3
−5
u
×
6
u
3
3
6
=
−5
u
×
6
u
=
−30
u
(15)
2
3
7
p
×
10
p
2
3
5
=
7
p
×
10
p
=
70
p
(16)
3
2
5
p
×
(
−3
)
p
3
2
5
=
5
p
×
(
−3
)
p
=
−15
p