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©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[1Q2-00]
(1)
3
1
+
3
(2)
8
1
+
28
7
(3)
1
7
+
7
7
(4)
−5
125
+
5
(5)
1
8
−
2
2
(6)
1
1
+
45
20
(7)
50
9
−10
+
2
(8)
7
1
8
+
175
(9)
63
6
−3
+
7
(10)
6
5
+
20
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
1
+
3
3
3
=
+
3
4
3
=
3
(2)
8
1
+
28
7
8
1
=
+
7
2
7
7
8
7
=
+
2
×
7
7
5
7
=
7
(3)
1
7
+
7
7
7
7
=
+
7
7
50
7
=
7
(4)
−5
125
+
5
5
5
=
−
+
5
5
5
5
5
=
−
+
5
5
5
=
4
(5)
1
8
−
2
2
2
2
8
=
−
2
2
7
2
=
−
2
(6)
1
1
+
45
20
1
1
=
+
5
3
5
2
5
5
=
+
3
×
5
2
×
5
1
5
=
6
(7)
50
9
−10
+
2
2
9
=
−10
×
5
+
2
2
2
9
=
−10
×
5
+
2
91
2
=
−
2
(8)
7
1
8
+
175
7
1
=
8
+
7
5
7
7
=
8
+
5
×
7
281
7
=
35
(9)
63
6
−3
+
7
7
6
=
−3
×
3
+
7
7
7
6
=
−3
×
3
+
7
57
7
=
−
7
(10)
6
5
+
20
6
5
=
+
5
2
5
6
5
=
+
2
×
5
8
5
=
5