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▲
©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[066-00]
(1)
(
+
56
)
÷
(
+
7
)
(2)
(
+
90
)
÷
(
+
10
)
(3)
(
+
15
)
÷
(
+
3
)
(4)
(
−
50
)
÷
(
−
10
)
(5)
(
+
14
)
÷
(
+
7
)
(6)
(
+
2
)
÷
(
+
2
)
(7)
(
+
4
)
÷
(
+
1
)
(8)
(
−
40
)
÷
(
−
10
)
(9)
(
+
27
)
÷
(
+
9
)
(10)
(
+
50
)
÷
(
+
5
)
(11)
(
−
40
)
÷
(
−
5
)
(12)
(
+
10
)
÷
(
+
2
)
(13)
(
+
70
)
÷
(
+
10
)
(14)
(
−
10
)
÷
(
−
10
)
(15)
(
+
12
)
÷
(
+
2
)
(16)
(
−
10
)
÷
(
−
1
)
(17)
(
−
15
)
÷
(
−
5
)
(18)
(
+
12
)
÷
(
+
2
)
(19)
(
+
10
)
÷
(
+
1
)
(20)
(
+
8
)
÷
(
+
4
)
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
(
+
56
)
÷
(
+
7
)
=
+
(
56
÷
7
)
=
+
8
(2)
(
+
90
)
÷
(
+
10
)
=
+
(
90
÷
10
)
=
+
9
(3)
(
+
15
)
÷
(
+
3
)
=
+
(
15
÷
3
)
=
+
5
(4)
(
−
50
)
÷
(
−
10
)
=
+
(
50
÷
10
)
=
+
5
(5)
(
+
14
)
÷
(
+
7
)
=
+
(
14
÷
7
)
=
+
2
(6)
(
+
2
)
÷
(
+
2
)
=
+
(
2
÷
2
)
=
+
1
(7)
(
+
4
)
÷
(
+
1
)
=
+
(
4
÷
1
)
=
+
4
(8)
(
−
40
)
÷
(
−
10
)
=
+
(
40
÷
10
)
=
+
4
(9)
(
+
27
)
÷
(
+
9
)
=
+
(
27
÷
9
)
=
+
3
(10)
(
+
50
)
÷
(
+
5
)
=
+
(
50
÷
5
)
=
+
10
(11)
(
−
40
)
÷
(
−
5
)
=
+
(
40
÷
5
)
=
+
8
(12)
(
+
10
)
÷
(
+
2
)
=
+
(
10
÷
2
)
=
+
5
(13)
(
+
70
)
÷
(
+
10
)
=
+
(
70
÷
10
)
=
+
7
(14)
(
−
10
)
÷
(
−
10
)
=
+
(
10
÷
10
)
=
+
1
(15)
(
+
12
)
÷
(
+
2
)
=
+
(
12
÷
2
)
=
+
6
(16)
(
−
10
)
÷
(
−
1
)
=
+
(
10
÷
1
)
=
+
10
(17)
(
−
15
)
÷
(
−
5
)
=
+
(
15
÷
5
)
=
+
3
(18)
(
+
12
)
÷
(
+
2
)
=
+
(
12
÷
2
)
=
+
6
(19)
(
+
10
)
÷
(
+
1
)
=
+
(
10
÷
1
)
=
+
10
(20)
(
+
8
)
÷
(
+
4
)
=
+
(
8
÷
4
)
=
+
2