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©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-20]
(1)
8
3
2
98
3
+
3
(2)
75
7
12
7
+
(3)
8
7
7
50
7
+
8
(4)
18
5
98
5
+
(5)
125
7
20
7
+
(6)
8
3
98
3
+
(7)
3
18
7
50
7
+
10
(8)
50
7
5
8
7
+
6
(9)
3
50
3
8
3
−
+
4
(10)
50
3
4
8
3
−
5
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
8
3
2
98
3
+
3
2
3
2
2
3
=
2
+
×
7
3
20
2
3
=
3
20
6
=
9
(2)
75
7
12
7
+
3
7
3
7
=
5
+
2
3
7
=
7
21
=
(3)
8
7
7
50
7
+
8
2
7
7
2
7
=
2
+
×
5
8
51
2
7
=
8
51
14
=
56
(4)
18
5
98
5
+
2
5
2
5
=
3
+
7
2
5
=
10
10
=
2
(5)
125
7
20
7
+
5
7
5
7
=
5
+
2
5
7
=
7
35
=
(6)
8
3
98
3
+
2
3
2
3
=
2
+
7
2
3
=
9
6
=
3
(7)
3
18
7
50
7
+
10
3
2
7
2
7
=
×
3
+
5
10
59
2
7
=
10
59
14
=
70
(8)
50
7
5
8
7
+
6
2
7
5
2
7
=
5
+
×
2
6
20
2
7
=
3
20
14
=
21
(9)
3
50
3
8
3
−
+
4
3
2
3
2
3
=
−
×
5
+
2
4
7
2
3
=
−
4
7
6
=
−
12
(10)
50
3
4
8
3
−
5
2
3
4
2
3
=
5
−
×
2
5
17
2
3
=
5
17
6
=
15