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©2024 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
5
125
2
(
＋
)
(2)
12
3
(
−
5
)
(3)
28
7
(
6
＋
)
(4)
125
3
45
(
＋
)
(5)
18
3
2
(
＋
)
(6)
20
5
(
−
6
)
(7)
2
2
2
(
＋
)
(8)
3
75
(
＋
6
)
(9)
3
27
(
−
3
)
(10)
3
3
2
(
＋
)
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
5
125
2
(
＋
)
5
5
2
=
(
5
＋
)
10
=
5
×
5
＋
10
=
25
＋
(2)
12
3
(
−
5
)
3
3
=
2
(
−
5
)
3
=
2
×
3
−
10
3
=
6
−
10
(3)
28
7
(
6
＋
)
7
7
=
2
(
6
＋
)
7
=
12
＋
2
×
7
7
=
12
＋
14
(4)
125
3
45
(
＋
)
5
3
5
=
5
(
＋
3
)
15
=
5
＋
15
×
5
15
=
5
＋
75
(5)
18
3
2
(
＋
)
2
3
2
=
3
(
＋
)
6
=
3
＋
3
×
2
6
=
3
＋
6
(6)
20
5
(
−
6
)
5
5
=
2
(
−
6
)
5
=
2
×
5
−
12
5
=
10
−
12
(7)
2
2
2
(
＋
)
=
2
＋
2
=
4
(8)
3
75
(
＋
6
)
3
3
=
(
5
＋
6
)
3
=
5
×
3
＋
6
3
=
15
＋
6
(9)
3
27
(
−
3
)
3
3
=
(
3
−
3
)
3
=
3
×
3
−
3
3
=
9
−
3
(10)
3
3
2
(
＋
)
6
=
3
＋
6
=
3
＋