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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
3
3
(
−8
＋
)
(2)
12
12
5
(
＋
)
(3)
3
12
(
−3
＋
)
(4)
5
7
5
(
＋
)
(5)
175
7
5
(
＋
)
(6)
27
3
(
−9
＋
)
(7)
5
7
5
(
＋
)
(8)
2
5
2
(
＋
)
(9)
5
2
125
(
＋
)
(10)
75
75
(
＋
10
)
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
3
(
−8
＋
)
3
=
−8
＋
3
3
=
−8
＋
3
(2)
12
12
5
(
＋
)
3
3
5
=
2
(
2
＋
)
15
=
4
×
3
＋
2
15
=
12
＋
2
(3)
3
12
(
−3
＋
)
3
3
=
(
−3
＋
2
)
3
=
−3
＋
2
×
3
3
=
−3
＋
6
(4)
5
7
5
(
＋
)
35
=
＋
5
35
=
＋
5
(5)
175
7
5
(
＋
)
7
7
5
=
5
(
＋
)
35
=
5
×
7
＋
5
35
=
35
＋
5
(6)
27
3
(
−9
＋
)
3
3
=
3
(
−9
＋
)
3
=
−27
＋
3
×
3
3
=
−27
＋
9
(7)
5
7
5
(
＋
)
35
=
＋
5
35
=
＋
5
(8)
2
5
2
(
＋
)
10
=
＋
2
10
=
＋
2
(9)
5
2
125
(
＋
)
5
2
5
=
(
＋
5
)
10
=
＋
5
×
5
10
=
＋
25
(10)
75
75
(
＋
10
)
3
3
=
5
(
5
＋
10
)
3
=
25
×
3
＋
50
3
=
75
＋
50