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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
(
＋
1
)
(2)
3
3
5
(
＋
)
(3)
2
7
2
(
＋
)
(4)
27
3
7
(
＋
)
(5)
45
125
(
1
＋
)
(6)
2
2
3
(
＋
)
(7)
20
5
(
−
4
)
(8)
27
3
(
2
＋
)
(9)
3
12
(
−6
＋
)
(10)
3
27
7
(
＋
)
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
3
(
＋
1
)
3
=
3
＋
3
=
3
＋
(2)
3
3
5
(
＋
)
15
=
3
＋
15
=
3
＋
(3)
2
7
2
(
＋
)
14
=
＋
2
14
=
＋
2
(4)
27
3
7
(
＋
)
3
3
7
=
3
(
＋
)
21
=
3
×
3
＋
3
21
=
9
＋
3
(5)
45
125
(
1
＋
)
5
5
=
3
(
1
＋
5
)
5
=
3
＋
15
×
5
5
=
3
＋
75
(6)
2
2
3
(
＋
)
6
=
2
＋
6
=
2
＋
(7)
20
5
(
−
4
)
5
5
=
2
(
−
4
)
5
=
2
×
5
−
8
5
=
10
−
8
(8)
27
3
(
2
＋
)
3
3
=
3
(
2
＋
)
3
=
6
＋
3
×
3
3
=
6
＋
9
(9)
3
12
(
−6
＋
)
3
3
=
(
−6
＋
2
)
3
=
−6
＋
2
×
3
3
=
−6
＋
6
(10)
3
27
7
(
＋
)
3
3
7
=
(
3
＋
)
21
=
3
×
3
＋
21
=
9
＋