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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1N0-00]
(1)
3
7
×
(2)
7
2
×
(3)
5
3
×
(4)
3
5
×
(5)
2
7
×
(6)
7
×
3
(7)
2
3
×
(8)
5
3
×
(9)
7
5
×
(10)
3
7
×
(11)
2
×
2
(12)
3
5
×
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
7
×
3
=
7
(2)
7
2
×
7
×
2
=
14
=
(3)
5
3
×
5
×
3
=
15
=
(4)
3
5
×
3
×
5
=
15
=
(5)
2
7
×
2
×
7
=
14
=
(6)
7
×
3
7
=
3
(7)
2
3
×
2
×
3
=
6
=
(8)
5
3
×
5
×
3
=
15
=
(9)
7
5
×
7
=
5
(10)
3
7
×
3
×
7
=
21
=
(11)
2
×
2
2
=
2
(12)
3
5
×
3
×
5
=
15
=
(1)
3
7
(2)
14
(3)
15
(4)
15
(5)
14
(6)
7
3
(7)
6
(8)
15
(9)
7
5
(10)
21
(11)
2
2
(12)
15