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©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-00]
(1)
18
8
−
3
(2)
175
28
−2
+
(3)
18
18
7
+
(4)
125
20
10
−
7
(5)
75
27
+
(6)
18
8
−8
+
(7)
12
75
10
+
(8)
75
27
2
+
(9)
18
18
+
(10)
28
175
+
2
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
18
8
−
3
2
2
=
3
−
3
×
2
2
=
−3
(2)
175
28
−2
+
7
7
=
−2
×
5
+
2
7
=
−8
(3)
18
18
7
+
2
2
=
7
×
3
+
3
2
=
24
(4)
125
20
10
−
7
5
5
=
10
×
5
−
7
×
2
5
=
36
(5)
75
27
+
3
3
=
5
+
3
3
=
8
(6)
18
8
−8
+
2
2
=
−8
×
3
+
2
2
=
−22
(7)
12
75
10
+
3
3
=
10
×
2
+
5
3
=
25
(8)
75
27
2
+
3
3
=
2
×
5
+
3
3
=
13
(9)
18
18
+
2
2
=
3
+
3
2
=
6
(10)
28
175
+
2
7
7
=
2
+
2
×
5
7
=
12