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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
[160-00]
(1)
2
2
p
×
8
r
(2)
2
10
u
×
9
w
(3)
−5
p
×
(
−7
)
r
(4)
3
6
a
×
6
c
(5)
3
2
p
×
5
p
(6)
−8
x
×
3
y
(7)
8
x
×
(
−4
)
z
(8)
2
3
u
×
(
−2
)
u
(9)
2
−4
a
×
(
−2
)
a
(10)
8
x
×
8
z
(11)
2
5
x
×
4
x
(12)
2
−9
p
×
9
r
(13)
9
p
×
10
q
(14)
−3
u
×
(
−8
)
w
(15)
3
−3
x
×
(
−6
)
z
(16)
−8
a
×
6
a
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
2
p
×
8
r
2
=
16
p
r
(2)
2
10
u
×
9
w
2
=
90
u
w
(3)
−5
p
×
(
−7
)
r
=
35
p
r
(4)
3
6
a
×
6
c
3
=
36
a
c
(5)
3
2
p
×
5
p
4
=
10
p
(6)
−8
x
×
3
y
=
−24
x
y
(7)
8
x
×
(
−4
)
z
=
−32
x
z
(8)
2
3
u
×
(
−2
)
u
3
=
−6
u
(9)
2
−4
a
×
(
−2
)
a
3
=
8
a
(10)
8
x
×
8
z
=
64
x
z
(11)
2
5
x
×
4
x
3
=
20
x
(12)
2
−9
p
×
9
r
2
=
−81
p
r
(13)
9
p
×
10
q
=
90
p
q
(14)
−3
u
×
(
−8
)
w
=
24
u
w
(15)
3
−3
x
×
(
−6
)
z
3
=
18
x
z
(16)
−8
a
×
6
a
2
=
−48
a