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©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-00]
(1)
12
75
+
(2)
27
75
−
8
(3)
8
18
+
(4)
12
27
+
(5)
8
50
10
−
6
(6)
27
12
−
+
(7)
75
75
9
+
6
(8)
8
50
4
+
(9)
45
125
+
(10)
8
8
−5
+
3
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
12
75
+
3
3
=
2
+
5
3
=
7
(2)
27
75
−
8
3
3
=
3
−
8
×
5
3
=
−37
(3)
8
18
+
2
2
=
2
+
3
2
=
5
(4)
12
27
+
3
3
=
2
+
3
3
=
5
(5)
8
50
10
−
6
2
2
=
10
×
2
−
6
×
5
2
=
−10
(6)
27
12
−
+
3
3
=
−
3
+
2
3
=
−
(7)
75
75
9
+
6
3
3
=
9
×
5
+
6
×
5
3
=
75
(8)
8
50
4
+
2
2
=
4
×
2
+
5
2
=
13
(9)
45
125
+
5
5
=
3
+
5
5
=
8
(10)
8
8
−5
+
3
2
2
=
−5
×
2
+
3
×
2
2
=
−4