［文字サイズの変更］
▼
▲
©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
12
3
(
4
＋
)
(2)
7
175
(
6
＋
)
(3)
125
125
7
(
＋
)
(4)
63
7
7
(
＋
)
(5)
5
3
5
(
＋
)
(6)
7
2
175
(
＋
)
(7)
45
5
5
(
＋
)
(8)
18
2
7
(
＋
)
(9)
5
20
(
−
9
)
(10)
50
50
7
(
＋
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
12
3
(
4
＋
)
3
3
=
2
(
4
＋
)
3
=
8
＋
2
×
3
3
=
8
＋
6
(2)
7
175
(
6
＋
)
7
7
=
(
6
＋
5
)
7
=
6
＋
5
×
7
7
=
6
＋
35
(3)
125
125
7
(
＋
)
5
5
7
=
5
(
5
＋
)
35
=
25
×
5
＋
5
35
=
125
＋
5
(4)
63
7
7
(
＋
)
7
7
7
=
3
(
＋
)
=
3
×
7
＋
3
×
7
=
42
(5)
5
3
5
(
＋
)
15
=
＋
5
15
=
＋
5
(6)
7
2
175
(
＋
)
7
2
7
=
(
＋
5
)
14
=
＋
5
×
7
14
=
＋
35
(7)
45
5
5
(
＋
)
5
5
5
=
3
(
＋
)
=
3
×
5
＋
3
×
5
=
30
(8)
18
2
7
(
＋
)
2
2
7
=
3
(
＋
)
14
=
3
×
2
＋
3
14
=
6
＋
3
(9)
5
20
(
−
9
)
5
5
=
(
2
−
9
)
5
=
2
×
5
−
9
5
=
10
−
9
(10)
50
50
7
(
＋
)
2
2
7
=
5
(
5
＋
)
14
=
25
×
2
＋
5
14
=
50
＋
5