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©2024 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q1-00]
(1)
12
12
−
7
(2)
125
20
+
(3)
175
175
10
+
8
(4)
63
28
−6
+
5
(5)
63
175
−8
+
10
(6)
28
175
10
+
(7)
12
75
−2
+
(8)
45
20
7
+
(9)
18
50
+
2
(10)
8
18
+
©2024 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
12
12
−
7
3
3
=
2
−
7
×
2
3
=
−12
(2)
125
20
+
5
5
=
5
+
2
5
=
7
(3)
175
175
10
+
8
7
7
=
10
×
5
+
8
×
5
7
=
90
(4)
63
28
−6
+
5
7
7
=
−6
×
3
+
5
×
2
7
=
−8
(5)
63
175
−8
+
10
7
7
=
−8
×
3
+
10
×
5
7
=
26
(6)
28
175
10
+
7
7
=
10
×
2
+
5
7
=
25
(7)
12
75
−2
+
3
3
=
−2
×
2
+
5
3
=
(8)
45
20
7
+
5
5
=
7
×
3
+
2
5
=
23
(9)
18
50
+
2
2
2
=
3
+
2
×
5
2
=
13
(10)
8
18
+
2
2
=
2
+
3
2
=
5