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©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-00]
(1)
20
125
−2
+
(2)
125
20
−
8
(3)
175
28
+
(4)
63
63
6
+
8
(5)
63
28
+
(6)
63
63
−9
−
6
(7)
75
27
+
(8)
45
125
+
3
(9)
20
20
+
(10)
75
75
7
+
7
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
20
125
−2
+
5
5
=
−2
×
2
+
5
5
=
(2)
125
20
−
8
5
5
=
5
−
8
×
2
5
=
−11
(3)
175
28
+
7
7
=
5
+
2
7
=
7
(4)
63
63
6
+
8
7
7
=
6
×
3
+
8
×
3
7
=
42
(5)
63
28
+
7
7
=
3
+
2
7
=
5
(6)
63
63
−9
−
6
7
7
=
−9
×
3
−
6
×
3
7
=
−45
(7)
75
27
+
3
3
=
5
+
3
3
=
8
(8)
45
125
+
3
5
5
=
3
+
3
×
5
5
=
18
(9)
20
20
+
5
5
=
2
+
2
5
=
4
(10)
75
75
7
+
7
3
3
=
7
×
5
+
7
×
5
3
=
70