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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
7
×
(3)
5
7
×
(4)
5
×
5
(5)
2
×
3
(6)
2
2
×
(7)
3
7
×
(8)
2
2
×
(9)
5
×
5
(10)
3
5
×
(11)
5
2
×
(12)
7
2
×
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
7
×
3
×
7
=
21
=
(2)
7
7
×
7
×
7
=
7
(3)
5
7
×
5
=
7
(4)
5
×
5
5
=
5
(5)
2
×
3
2
=
3
(6)
2
2
×
2
×
2
=
2
(7)
3
7
×
3
=
7
(8)
2
2
×
2
×
2
=
2
(9)
5
×
5
5
=
5
(10)
3
5
×
3
×
5
=
15
=
(11)
5
2
×
5
=
2
(12)
7
2
×
7
×
2
=
14
=
(1)
21
(2)
7
(3)
5
7
(4)
5
5
(5)
2
3
(6)
2
(7)
3
7
(8)
2
(9)
5
5
(10)
15
(11)
5
2
(12)
14