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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
27
3
5
(
＋
)
(2)
63
63
7
(
＋
)
(3)
125
125
(
−9
＋
)
(4)
7
7
3
(
＋
)
(5)
2
2
(
−6
＋
)
(6)
7
63
3
(
＋
)
(7)
12
27
(
7
＋
)
(8)
5
5
(
＋
5
)
(9)
5
5
2
(
＋
)
(10)
27
5
27
(
＋
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
27
3
5
(
＋
)
3
3
5
=
3
(
＋
)
15
=
3
×
3
＋
3
15
=
9
＋
3
(2)
63
63
7
(
＋
)
7
7
7
=
3
(
3
＋
)
=
9
×
7
＋
3
×
7
=
84
(3)
125
125
(
−9
＋
)
5
5
=
5
(
−9
＋
5
)
5
=
−45
＋
25
×
5
5
=
−45
＋
125
(4)
7
7
3
(
＋
)
21
=
7
＋
21
=
7
＋
(5)
2
2
(
−6
＋
)
2
=
−6
＋
2
2
=
−6
＋
2
(6)
7
63
3
(
＋
)
7
7
3
=
(
3
＋
)
21
=
3
×
7
＋
21
=
21
＋
(7)
12
27
(
7
＋
)
3
3
=
2
(
7
＋
3
)
3
=
14
＋
6
×
3
3
=
14
＋
18
(8)
5
5
(
＋
5
)
5
=
5
＋
5
5
=
5
＋
5
(9)
5
5
2
(
＋
)
10
=
5
＋
10
=
5
＋
(10)
27
5
27
(
＋
)
3
5
3
=
3
(
＋
3
)
15
=
3
＋
9
×
3
15
=
3
＋
27