［文字サイズの変更］
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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[06D-10]
(1)
(
＋
0.3
)
×
(
−
0.6
)
×
(
＋
0.3
)
(2)
(
−
0.3
)
÷
(
＋
0.1
)
×
(
−
0.6
)
(3)
(
＋
0.8
)
÷
(
−
0.1
)
÷
(
−
0.7
)
(4)
(
＋
0.1
)
×
(
−
0.4
)
÷
(
−
0.6
)
(5)
(
＋
0.7
)
×
(
＋
0.2
)
÷
(
−
0.1
)
(6)
(
−
0.8
)
×
(
＋
0.7
)
÷
(
−
0.4
)
(7)
(
−
0.3
)
÷
(
−
0.5
)
×
(
＋
0.7
)
(8)
(
＋
0.5
)
÷
(
−
0.7
)
×
(
＋
0.3
)
(9)
(
−
0.8
)
÷
(
−
0.6
)
×
(
＋
0.2
)
(10)
(
−
0.5
)
÷
(
＋
0.7
)
÷
(
−
0.7
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
(
＋
0.3
)
×
(
−
0.6
)
×
(
＋
0.3
)
=
−
(
0.3
×
0.6
×
0.3
)
=
−0.054
(2)
(
−
0.3
)
÷
(
＋
0.1
)
×
(
−
0.6
)
=
＋
(
0.3
÷
0.1
×
0.6
)
=
＋
1.8
(3)
(
＋
0.8
)
÷
(
−
0.1
)
÷
(
−
0.7
)
=
＋
(
0.8
÷
0.1
÷
0.7
)
80
=
＋
7
(4)
(
＋
0.1
)
×
(
−
0.4
)
÷
(
−
0.6
)
=
＋
(
0.1
×
0.4
÷
0.6
)
1
=
＋
15
(5)
(
＋
0.7
)
×
(
＋
0.2
)
÷
(
−
0.1
)
=
−
(
0.7
×
0.2
÷
0.1
)
=
−1.4
(6)
(
−
0.8
)
×
(
＋
0.7
)
÷
(
−
0.4
)
=
＋
(
0.8
×
0.7
÷
0.4
)
=
＋
1.4
(7)
(
−
0.3
)
÷
(
−
0.5
)
×
(
＋
0.7
)
=
＋
(
0.3
÷
0.5
×
0.7
)
=
＋
0.42
(8)
(
＋
0.5
)
÷
(
−
0.7
)
×
(
＋
0.3
)
=
−
(
0.5
÷
0.7
×
0.3
)
3
=
−
14
(9)
(
−
0.8
)
÷
(
−
0.6
)
×
(
＋
0.2
)
=
＋
(
0.8
÷
0.6
×
0.2
)
4
=
＋
15
(10)
(
−
0.5
)
÷
(
＋
0.7
)
÷
(
−
0.7
)
=
＋
(
0.5
÷
0.7
÷
0.7
)
50
=
＋
49