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©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q2-00]
(1)
3
1
−
3
(2)
1
1
+
3
3
(3)
−5
5
+
6
5
(4)
−9
1
+
7
7
(5)
1
5
+
12
27
(6)
7
45
−
4
45
(7)
1
8
+
2
(8)
1
6
+
27
3
(9)
5
6
−7
−
45
(10)
6
1
+
2
50
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
1
−
3
3
3
=
−
3
2
3
=
3
(2)
1
1
+
3
3
3
3
=
+
3
3
2
3
=
3
(3)
−5
5
+
6
5
5
5
5
=
−
+
6
5
5
=
5
(4)
−9
1
+
7
7
7
9
7
=
−
+
7
7
8
7
=
−
7
(5)
1
5
+
12
27
1
5
=
+
3
2
3
3
3
3
5
=
+
2
×
3
3
×
3
13
3
=
18
(6)
7
45
−
4
45
7
5
=
−
4
×
3
5
3
5
7
5
=
−
4
×
3
3
×
5
173
5
=
−
15
(7)
1
8
+
2
1
2
=
+
2
2
2
2
=
+
2
2
5
2
=
2
(8)
1
6
+
27
3
1
6
=
+
3
3
3
3
3
6
=
+
3
×
3
3
19
3
=
9
(9)
5
6
−7
−
45
5
6
=
−7
−
5
3
5
5
6
=
−7
−
3
×
5
37
5
=
−
5
(10)
6
1
+
2
50
6
1
=
+
2
2
5
2
6
2
=
+
2
5
×
2
31
2
=
10