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©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-20]
(1)
12
5
4
147
5
+
5
(2)
8
7
50
7
+
(3)
20
7
125
7
+
(4)
8
5
1
18
5
+
8
(5)
50
3
8
98
3
+
9
(6)
1
8
5
1
18
5
−
3
6
(7)
27
5
12
5
+
(8)
7
8
5
18
5
+
8
(9)
12
7
75
7
−
(10)
125
7
20
7
+
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
12
5
4
147
5
+
5
3
5
4
3
5
=
2
+
×
7
5
38
3
5
=
5
38
15
=
25
(2)
8
7
50
7
+
2
7
2
7
=
2
+
5
2
7
=
7
14
=
(3)
20
7
125
7
+
5
7
5
7
=
2
+
5
5
7
=
7
35
=
(4)
8
5
1
18
5
+
8
2
5
1
2
5
=
2
+
×
3
8
19
2
5
=
8
19
10
=
40
(5)
50
3
8
98
3
+
9
2
3
8
2
3
=
5
+
×
7
9
101
2
3
=
9
101
6
=
27
(6)
1
8
5
1
18
5
−
3
6
1
2
5
1
2
5
=
×
2
−
×
3
3
6
1
2
5
=
6
1
10
=
30
(7)
27
5
12
5
+
3
5
3
5
=
3
+
2
3
5
=
5
15
=
(8)
7
8
5
18
5
+
8
7
2
5
2
5
=
×
2
+
3
8
19
2
5
=
4
19
10
=
20
(9)
12
7
75
7
−
3
7
3
7
=
2
−
5
3
7
=
−3
3
21
=
−
7
(10)
125
7
20
7
+
5
7
5
7
=
5
+
2
5
7
=
7
35
=