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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
8
8
2
(
＋
)
(2)
2
2
(
−
4
)
(3)
2
18
(
−
10
)
(4)
2
50
(
＋
6
)
(5)
175
7
(
−4
＋
)
(6)
63
63
(
7
＋
)
(7)
2
2
(
−10
＋
)
(8)
5
7
5
(
＋
)
(9)
12
27
2
(
＋
)
(10)
2
5
8
(
＋
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
8
8
2
(
＋
)
2
2
2
=
2
(
2
＋
)
=
4
×
2
＋
2
×
2
=
12
(2)
2
2
(
−
4
)
2
=
2
−
4
2
=
2
−
4
(3)
2
18
(
−
10
)
2
2
=
(
3
−
10
)
2
=
3
×
2
−
10
2
=
6
−
10
(4)
2
50
(
＋
6
)
2
2
=
(
5
＋
6
)
2
=
5
×
2
＋
6
2
=
10
＋
6
(5)
175
7
(
−4
＋
)
7
7
=
5
(
−4
＋
)
7
=
−20
＋
5
×
7
7
=
−20
＋
35
(6)
63
63
(
7
＋
)
7
7
=
3
(
7
＋
3
)
7
=
21
＋
9
×
7
7
=
21
＋
63
(7)
2
2
(
−10
＋
)
2
=
−10
＋
2
2
=
−10
＋
2
(8)
5
7
5
(
＋
)
35
=
＋
5
35
=
＋
5
(9)
12
27
2
(
＋
)
3
3
2
=
2
(
3
＋
)
6
=
6
×
3
＋
2
6
=
18
＋
2
(10)
2
5
8
(
＋
)
2
5
2
=
(
＋
2
)
10
=
＋
2
×
2
10
=
＋
4