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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
125
2
5
(
＋
)
(2)
2
3
2
(
＋
)
(3)
8
2
(
＋
6
)
(4)
2
50
7
(
＋
)
(5)
75
3
(
−
5
)
(6)
2
7
50
(
＋
)
(7)
45
5
(
−
9
)
(8)
8
5
8
(
＋
)
(9)
12
2
3
(
＋
)
(10)
27
12
(
＋
1
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
125
2
5
(
＋
)
5
2
5
=
5
(
＋
)
10
=
5
＋
5
×
5
10
=
5
＋
25
(2)
2
3
2
(
＋
)
6
=
＋
2
6
=
＋
2
(3)
8
2
(
＋
6
)
2
2
=
2
(
＋
6
)
2
=
2
×
2
＋
12
2
=
4
＋
12
(4)
2
50
7
(
＋
)
2
2
7
=
(
5
＋
)
14
=
5
×
2
＋
14
=
10
＋
(5)
75
3
(
−
5
)
3
3
=
5
(
−
5
)
3
=
5
×
3
−
25
3
=
15
−
25
(6)
2
7
50
(
＋
)
2
7
2
=
(
＋
5
)
14
=
＋
5
×
2
14
=
＋
10
(7)
45
5
(
−
9
)
5
5
=
3
(
−
9
)
5
=
3
×
5
−
27
5
=
15
−
27
(8)
8
5
8
(
＋
)
2
5
2
=
2
(
＋
2
)
10
=
2
＋
4
×
2
10
=
2
＋
8
(9)
12
2
3
(
＋
)
3
2
3
=
2
(
＋
)
6
=
2
＋
2
×
3
6
=
2
＋
6
(10)
27
12
(
＋
1
)
3
3
=
3
(
2
＋
1
)
3
=
6
×
3
＋
3
3
=
18
＋
3