[文字サイズの変更]
▼
▲
©2025 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[06D-10]
(1)
(
+
0.2
)
÷
(
−
0.6
)
÷
(
−
0.8
)
(2)
(
+
0.1
)
×
(
−
0.3
)
÷
(
+
0.6
)
(3)
(
+
0.8
)
×
(
−
1
)
×
(
−
1
)
(4)
(
+
0.1
)
×
(
−
0.3
)
×
(
+
0.8
)
(5)
(
+
0.7
)
÷
(
+
0.7
)
÷
(
−
1
)
(6)
(
+
0.3
)
×
(
+
1
)
×
(
−
0.2
)
(7)
(
+
0.7
)
×
(
−
0.1
)
×
(
−
0.8
)
(8)
(
+
0.8
)
×
(
−
0.8
)
×
(
+
0.8
)
(9)
(
+
0.7
)
×
(
−
0.7
)
×
(
+
0.4
)
(10)
(
−
1
)
÷
(
−
0.1
)
÷
(
+
0.7
)
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
(
+
0.2
)
÷
(
−
0.6
)
÷
(
−
0.8
)
=
+
(
0.2
÷
0.6
÷
0.8
)
5
=
+
12
(2)
(
+
0.1
)
×
(
−
0.3
)
÷
(
+
0.6
)
=
−
(
0.1
×
0.3
÷
0.6
)
=
−0.05
(3)
(
+
0.8
)
×
(
−
1
)
×
(
−
1
)
=
+
(
0.8
×
1
×
1
)
=
+
0.8
(4)
(
+
0.1
)
×
(
−
0.3
)
×
(
+
0.8
)
=
−
(
0.1
×
0.3
×
0.8
)
=
−0.024
(5)
(
+
0.7
)
÷
(
+
0.7
)
÷
(
−
1
)
=
−
(
0.7
÷
0.7
÷
1
)
=
−1
(6)
(
+
0.3
)
×
(
+
1
)
×
(
−
0.2
)
=
−
(
0.3
×
1
×
0.2
)
=
−0.06
(7)
(
+
0.7
)
×
(
−
0.1
)
×
(
−
0.8
)
=
+
(
0.7
×
0.1
×
0.8
)
=
+
0.056
(8)
(
+
0.8
)
×
(
−
0.8
)
×
(
+
0.8
)
=
−
(
0.8
×
0.8
×
0.8
)
=
−0.512
(9)
(
+
0.7
)
×
(
−
0.7
)
×
(
+
0.4
)
=
−
(
0.7
×
0.7
×
0.4
)
=
−0.196
(10)
(
−
1
)
÷
(
−
0.1
)
÷
(
+
0.7
)
=
+
(
1
÷
0.1
÷
0.7
)
100
=
+
7