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©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q2-00]
(1)
1
1
+
7
7
(2)
3
1
+
3
(3)
1
1
+
75
3
(4)
1
7
+
75
3
(5)
7
1
+
2
2
(6)
125
1
−2
−
125
(7)
7
1
+
63
63
(8)
1
27
+
3
(9)
−10
7
+
7
(10)
1
5
+
125
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
1
1
+
7
7
7
7
=
+
7
7
2
7
=
7
(2)
3
1
+
3
3
3
=
+
3
4
3
=
3
(3)
1
1
+
75
3
1
1
=
+
3
5
3
3
3
=
+
5
×
3
3
2
3
=
5
(4)
1
7
+
75
3
1
7
=
+
3
5
3
3
3
7
=
+
5
×
3
3
12
3
=
5
(5)
7
1
+
2
2
2
7
2
=
+
2
2
2
=
4
(6)
125
1
−2
−
125
5
1
=
−2
×
5
−
5
5
5
5
=
−2
×
5
−
5
×
5
251
5
=
−
25
(7)
7
1
+
63
63
7
1
=
+
7
3
7
3
7
7
7
=
+
3
×
7
3
×
7
8
7
=
21
(8)
1
27
+
3
1
3
=
+
3
3
3
3
=
+
3
3
10
3
=
3
(9)
−10
7
+
7
7
10
7
=
−
+
7
3
7
=
−
7
(10)
1
5
+
125
1
5
=
+
5
5
5
5
=
+
5
×
5
26
5
=
25