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©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q2-00]
(1)
2
1
+
3
12
(2)
1
3
+
9
3
(3)
10
63
+
175
(4)
1
12
+
5
12
(5)
7
45
−
8
45
(6)
8
4
−
2
(7)
1
1
+
18
8
(8)
7
1
+
7
(9)
−9
28
+
5
28
(10)
7
125
+
9
5
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
2
1
+
3
12
2
1
=
+
3
3
2
3
2
3
=
+
3
2
×
3
5
3
=
6
(2)
1
3
+
9
3
3
3
=
+
9
3
28
3
=
3
(3)
10
63
+
175
10
7
=
+
3
7
5
7
10
7
=
+
3
5
×
7
23
7
=
7
(4)
1
12
+
5
12
1
3
=
+
5
×
2
3
2
3
3
=
+
5
×
2
2
×
3
61
3
=
6
(5)
7
45
−
8
45
7
5
=
−
8
×
3
5
3
5
7
5
=
−
8
×
3
3
×
5
353
5
=
−
15
(6)
8
4
−
2
2
4
=
2
−
2
2
2
4
=
2
−
2
=
0
(7)
1
1
+
18
8
1
1
=
+
2
3
2
2
2
2
=
+
3
×
2
2
×
2
5
2
=
12
(8)
7
1
+
7
7
7
=
+
7
8
7
=
7
(9)
−9
28
+
5
28
9
7
=
−
+
5
×
2
7
2
7
9
7
=
−
+
5
×
2
2
×
7
131
7
=
14
(10)
7
125
+
9
5
7
5
=
+
9
×
5
5
5
7
5
=
+
9
×
5
5
232
5
=
5