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©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-00]
(1)
8
50
+
(2)
50
18
+
(3)
75
27
−3
−
5
(4)
12
27
+
(5)
28
28
−9
+
6
(6)
18
50
5
+
(7)
45
20
+
8
(8)
125
20
9
+
2
(9)
175
28
+
(10)
125
20
−5
+
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
8
50
+
2
2
=
2
+
5
2
=
7
(2)
50
18
+
2
2
=
5
+
3
2
=
8
(3)
75
27
−3
−
5
3
3
=
−3
×
5
−
5
×
3
3
=
−30
(4)
12
27
+
3
3
=
2
+
3
3
=
5
(5)
28
28
−9
+
6
7
7
=
−9
×
2
+
6
×
2
7
=
−6
(6)
18
50
5
+
2
2
=
5
×
3
+
5
2
=
20
(7)
45
20
+
8
5
5
=
3
+
8
×
2
5
=
19
(8)
125
20
9
+
2
5
5
=
9
×
5
+
2
×
2
5
=
49
(9)
175
28
+
7
7
=
5
+
2
7
=
7
(10)
125
20
−5
+
5
5
=
−5
×
5
+
2
5
=
−23