［文字サイズの変更］
▼
▲
©2024 数学クラブ http://sugaku.club/
月 日（ ）
● 次の式を，記号×÷を使って書きましょう
[07D-00]
(1)
a
b
7
(2)
a
2
b
(3)
a
b
7
c
(4)
8
a
c
b
(5)
a
b
7
(6)
9
a
c
d
b
(7)
a
2
b
(8)
5
a
b
c
d
(9)
9
a
c
b
(10)
a
b
c
4
d
(11)
4
a
b
c
d
(12)
9
a
b
c
(13)
6
a
b
c
(14)
a
4
b
c
(15)
4
a
b
c
d
(16)
a
c
d
5
b
(17)
4
a
b
(18)
3
a
c
b
(19)
8
a
b
c
(20)
8
a
b
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
a
b
7
=
a
×
b
÷
7
(2)
a
2
b
=
a
÷
2
÷
b
(3)
a
b
7
c
=
a
×
b
÷
7
÷
c
(4)
8
a
c
b
=
8
×
a
×
c
÷
b
(5)
a
b
7
=
a
×
b
÷
7
(6)
9
a
c
d
b
=
9
×
a
×
c
×
d
÷
b
(7)
a
2
b
=
a
÷
2
÷
b
(8)
5
a
b
c
d
=
5
×
a
×
b
×
c
×
d
(9)
9
a
c
b
=
9
×
a
×
c
÷
b
(10)
a
b
c
4
d
=
a
×
b
×
c
÷
4
÷
d
(11)
4
a
b
c
d
=
4
×
a
×
b
÷
c
÷
d
(12)
9
a
b
c
=
9
×
a
÷
b
÷
c
(13)
6
a
b
c
=
6
×
a
÷
b
÷
c
(14)
a
4
b
c
=
a
÷
4
÷
b
÷
c
(15)
4
a
b
c
d
=
4
×
a
×
b
÷
c
÷
d
(16)
a
c
d
5
b
=
a
×
c
×
d
÷
5
÷
b
(17)
4
a
b
=
4
×
a
×
b
(18)
3
a
c
b
=
3
×
a
×
c
÷
b
(19)
8
a
b
c
=
8
×
a
×
b
÷
c
(20)
8
a
b
=
8
×
a
×
b