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©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q2-00]
(1)
125
7
−
5
(2)
28
1
4
+
7
(3)
−9
125
+
125
(4)
4
75
+
12
(5)
−10
18
+
8
(6)
3
1
−9
+
3
(7)
1
1
+
28
63
(8)
10
1
+
5
20
(9)
28
8
+
175
(10)
7
1
+
7
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
125
7
−
5
5
7
=
5
−
5
5
5
7
=
5
−
5
18
5
=
5
(2)
28
1
4
+
7
7
1
=
4
×
2
+
7
7
7
=
4
×
2
+
7
57
7
=
7
(3)
−9
125
+
125
9
5
=
−
+
5
5
5
5
9
5
=
−
+
5
5
×
5
116
5
=
25
(4)
4
75
+
12
4
3
=
+
5
3
2
3
4
3
=
+
5
2
×
3
17
3
=
3
(5)
−10
18
+
8
10
2
=
−
+
3
2
2
2
10
2
=
−
+
3
2
×
2
1
2
=
2
(6)
3
1
−9
+
3
3
3
=
−9
+
3
26
3
=
−
3
(7)
1
1
+
28
63
1
1
=
+
7
2
7
3
7
7
=
+
2
×
7
3
×
7
5
7
=
42
(8)
10
1
+
5
20
10
1
=
+
5
5
2
5
10
5
=
+
5
2
×
5
21
5
=
10
(9)
28
8
+
175
7
8
=
2
+
7
5
7
7
8
=
2
+
5
×
7
78
7
=
35
(10)
7
1
+
7
7
7
=
+
7
8
7
=
7