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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
2
18
(
−6
＋
)
(2)
5
125
2
(
＋
)
(3)
63
7
(
−
6
)
(4)
8
2
(
2
＋
)
(5)
5
5
(
−
3
)
(6)
8
2
(
−
5
)
(7)
18
7
8
(
＋
)
(8)
2
8
(
3
＋
)
(9)
2
2
(
5
＋
)
(10)
5
3
125
(
＋
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
18
(
−6
＋
)
2
2
=
(
−6
＋
3
)
2
=
−6
＋
3
×
2
2
=
−6
＋
6
(2)
5
125
2
(
＋
)
5
5
2
=
(
5
＋
)
10
=
5
×
5
＋
10
=
25
＋
(3)
63
7
(
−
6
)
7
7
=
3
(
−
6
)
7
=
3
×
7
−
18
7
=
21
−
18
(4)
8
2
(
2
＋
)
2
2
=
2
(
2
＋
)
2
=
4
＋
2
×
2
2
=
4
＋
4
(5)
5
5
(
−
3
)
5
=
5
−
3
5
=
5
−
3
(6)
8
2
(
−
5
)
2
2
=
2
(
−
5
)
2
=
2
×
2
−
10
2
=
4
−
10
(7)
18
7
8
(
＋
)
2
7
2
=
3
(
＋
2
)
14
=
3
＋
6
×
2
14
=
3
＋
12
(8)
2
8
(
3
＋
)
2
2
=
(
3
＋
2
)
2
=
3
＋
2
×
2
2
=
3
＋
4
(9)
2
2
(
5
＋
)
2
=
5
＋
2
2
=
5
＋
2
(10)
5
3
125
(
＋
)
5
3
5
=
(
＋
5
)
15
=
＋
5
×
5
15
=
＋
25