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©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-00]
(1)
12
27
−
10
(2)
20
125
−
7
(3)
125
45
−8
+
(4)
8
8
+
2
(5)
125
125
+
(6)
63
175
+
(7)
63
28
+
5
(8)
28
28
+
(9)
50
18
5
+
(10)
75
27
−
7
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
12
27
−
10
3
3
=
2
−
10
×
3
3
=
−28
(2)
20
125
−
7
5
5
=
2
−
7
×
5
5
=
−33
(3)
125
45
−8
+
5
5
=
−8
×
5
+
3
5
=
−37
(4)
8
8
+
2
2
2
=
2
+
2
×
2
2
=
6
(5)
125
125
+
5
5
=
5
+
5
5
=
10
(6)
63
175
+
7
7
=
3
+
5
7
=
8
(7)
63
28
+
5
7
7
=
3
+
5
×
2
7
=
13
(8)
28
28
+
7
7
=
2
+
2
7
=
4
(9)
50
18
5
+
2
2
=
5
×
5
+
3
2
=
28
(10)
75
27
−
7
3
3
=
5
−
7
×
3
3
=
−16