[文字サイズの変更]
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▲
©2024 数学クラブ http://sugaku.club/
月 日( )
● 計算しなさい
[06D-10]
(1)
(
−
0.4
)
×
(
−
0.5
)
×
(
+
0.8
)
(2)
(
−
0.7
)
÷
(
+
0.1
)
×
(
+
0.5
)
(3)
(
+
0.7
)
×
(
+
0.6
)
×
(
−
0.3
)
(4)
(
−
0.9
)
×
(
+
0.8
)
÷
(
+
0.6
)
(5)
(
+
0.1
)
÷
(
−
0.6
)
×
(
−
0.4
)
(6)
(
+
0.7
)
×
(
+
0.6
)
×
(
−
0.5
)
(7)
(
+
0.2
)
÷
(
+
0.6
)
×
(
−
0.1
)
(8)
(
−
0.4
)
÷
(
−
1
)
×
(
+
0.7
)
(9)
(
−
0.3
)
÷
(
+
0.5
)
÷
(
−
0.1
)
(10)
(
+
0.7
)
÷
(
−
0.5
)
÷
(
−
1
)
©2024 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
(
−
0.4
)
×
(
−
0.5
)
×
(
+
0.8
)
=
+
(
0.4
×
0.5
×
0.8
)
=
+
0.16
(2)
(
−
0.7
)
÷
(
+
0.1
)
×
(
+
0.5
)
=
−
(
0.7
÷
0.1
×
0.5
)
=
−3.5
(3)
(
+
0.7
)
×
(
+
0.6
)
×
(
−
0.3
)
=
−
(
0.7
×
0.6
×
0.3
)
=
−0.126
(4)
(
−
0.9
)
×
(
+
0.8
)
÷
(
+
0.6
)
=
−
(
0.9
×
0.8
÷
0.6
)
=
−1.2
(5)
(
+
0.1
)
÷
(
−
0.6
)
×
(
−
0.4
)
=
+
(
0.1
÷
0.6
×
0.4
)
1
=
+
15
(6)
(
+
0.7
)
×
(
+
0.6
)
×
(
−
0.5
)
=
−
(
0.7
×
0.6
×
0.5
)
=
−0.21
(7)
(
+
0.2
)
÷
(
+
0.6
)
×
(
−
0.1
)
=
−
(
0.2
÷
0.6
×
0.1
)
1
=
−
30
(8)
(
−
0.4
)
÷
(
−
1
)
×
(
+
0.7
)
=
+
(
0.4
÷
1
×
0.7
)
=
+
0.28
(9)
(
−
0.3
)
÷
(
+
0.5
)
÷
(
−
0.1
)
=
+
(
0.3
÷
0.5
÷
0.1
)
=
+
6
(10)
(
+
0.7
)
÷
(
−
0.5
)
÷
(
−
1
)
=
+
(
0.7
÷
0.5
÷
1
)
=
+
1.4