[文字サイズの変更]
▼
▲
©2026 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-20]
(1)
27
2
4
75
2
−
5
(2)
45
7
125
7
+
(3)
27
5
12
5
+
(4)
2
8
7
3
50
7
−
+
9
7
(5)
18
5
5
8
5
−
9
(6)
20
7
3
125
7
−
4
(7)
2
12
7
1
75
7
−
5
6
(8)
50
3
2
8
3
+
3
(9)
1
20
7
45
7
−
+
2
(10)
75
7
12
7
+
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
27
2
4
75
2
−
5
3
2
4
3
2
=
3
−
×
5
5
3
2
=
−
1
6
=
−
2
(2)
45
7
125
7
+
5
7
5
7
=
3
+
5
5
7
=
8
8
35
=
7
(3)
27
5
12
5
+
3
5
3
5
=
3
+
2
3
5
=
5
15
=
(4)
2
8
7
3
50
7
−
+
9
7
2
2
7
3
2
7
=
−
×
2
+
×
5
9
7
107
2
7
=
63
107
14
=
441
(5)
18
5
5
8
5
−
9
2
5
5
2
5
=
3
−
×
2
9
17
2
5
=
9
17
10
=
45
(6)
20
7
3
125
7
−
4
5
7
3
5
7
=
2
−
×
5
4
7
5
7
=
−
4
1
35
=
−
4
(7)
2
12
7
1
75
7
−
5
6
2
3
7
1
3
7
=
×
2
−
×
5
5
6
1
3
7
=
−
30
1
21
=
−
210
(8)
50
3
2
8
3
+
3
2
3
2
2
3
=
5
+
×
2
3
19
2
3
=
3
19
6
=
9
(9)
1
20
7
45
7
−
+
2
1
5
7
5
7
=
−
×
2
+
3
2
5
7
=
2
2
35
=
7
(10)
75
7
12
7
+
3
7
3
7
=
5
+
2
3
7
=
7
21
=