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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
3
3
(
−
5
)
(2)
5
5
2
(
＋
)
(3)
12
3
5
(
＋
)
(4)
18
50
(
＋
7
)
(5)
175
63
3
(
＋
)
(6)
2
2
(
9
＋
)
(7)
63
7
5
(
＋
)
(8)
5
5
(
8
＋
)
(9)
125
5
(
−7
＋
)
(10)
2
5
50
(
＋
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
3
(
−
5
)
3
=
3
−
5
3
=
3
−
5
(2)
5
5
2
(
＋
)
10
=
5
＋
10
=
5
＋
(3)
12
3
5
(
＋
)
3
3
5
=
2
(
＋
)
15
=
2
×
3
＋
2
15
=
6
＋
2
(4)
18
50
(
＋
7
)
2
2
=
3
(
5
＋
7
)
2
=
15
×
2
＋
21
2
=
30
＋
21
(5)
175
63
3
(
＋
)
7
7
3
=
5
(
3
＋
)
21
=
15
×
7
＋
5
21
=
105
＋
5
(6)
2
2
(
9
＋
)
2
=
9
＋
2
2
=
9
＋
2
(7)
63
7
5
(
＋
)
7
7
5
=
3
(
＋
)
35
=
3
×
7
＋
3
35
=
21
＋
3
(8)
5
5
(
8
＋
)
5
=
8
＋
5
5
=
8
＋
5
(9)
125
5
(
−7
＋
)
5
5
=
5
(
−7
＋
)
5
=
−35
＋
5
×
5
5
=
−35
＋
25
(10)
2
5
50
(
＋
)
2
5
2
=
(
＋
5
)
10
=
＋
5
×
2
10
=
＋
10