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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1N0-00]
(1)
2
5
×
(2)
7
5
×
(3)
2
2
×
(4)
3
7
×
(5)
5
2
×
(6)
3
5
×
(7)
2
7
×
(8)
5
2
×
(9)
5
3
×
(10)
2
5
×
(11)
5
2
×
(12)
3
5
×
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
5
×
2
×
5
=
10
=
(2)
7
5
×
7
×
5
=
35
=
(3)
2
2
×
2
=
2
(4)
3
7
×
3
×
7
=
21
=
(5)
5
2
×
5
×
2
=
10
=
(6)
3
5
×
3
×
5
=
15
=
(7)
2
7
×
2
×
7
=
14
=
(8)
5
2
×
5
×
2
=
10
=
(9)
5
3
×
5
×
3
=
15
=
(10)
2
5
×
2
=
5
(11)
5
2
×
5
×
2
=
10
=
(12)
3
5
×
3
×
5
=
15
=
(1)
10
(2)
35
(3)
2
2
(4)
21
(5)
10
(6)
15
(7)
14
(8)
10
(9)
15
(10)
2
5
(11)
10
(12)
15