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©2024 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-20]
(1)
2
5
8
5
3
5
(
＋
)
(2)
2
5
8
5
(
＋
1
)
(3)
2
7
50
7
3
7
(
＋
)
(4)
2
3
50
3
(
−
1
)
(5)
12
5
3
5
2
7
(
＋
)
(6)
12
7
27
7
1
(
＋
)
(7)
5
7
125
7
5
7
(
＋
)
(8)
18
7
50
7
2
7
(
＋
)
(9)
50
3
3
7
2
3
(
＋
)
(10)
28
3
2
175
3
(
＋
)
3
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
5
8
5
3
5
(
＋
)
2
5
2
5
3
5
=
(
2
＋
)
2
1
6
=
2
×
＋
5
5
4
1
6
=
＋
5
5
(2)
2
5
8
5
(
＋
1
)
2
5
2
5
=
(
2
＋
1
)
2
2
5
=
2
×
＋
5
4
1
10
=
＋
5
5
(3)
2
7
50
7
3
7
(
＋
)
2
7
2
7
3
7
=
(
5
＋
)
2
1
6
=
5
×
＋
7
7
10
1
6
=
＋
7
7
(4)
2
3
50
3
(
−
1
)
2
3
2
3
=
(
5
−
1
)
2
2
3
=
5
×
−
3
10
1
6
=
−
3
3
(5)
12
5
3
5
2
7
(
＋
)
3
5
3
5
2
7
=
2
(
＋
)
3
6
35
=
2
×
＋
2
5
6
2
210
=
＋
5
35
(6)
12
7
27
7
1
(
＋
)
3
7
3
7
=
2
(
3
＋
1
)
3
3
7
=
6
×
＋
2
7
18
2
21
=
＋
7
7
(7)
5
7
125
7
5
7
(
＋
)
5
7
5
7
5
7
=
(
5
＋
)
5
5
=
5
×
＋
7
7
30
=
7
(8)
18
7
50
7
2
7
(
＋
)
2
7
2
7
2
7
=
3
(
5
＋
)
2
2
=
15
×
＋
3
×
7
7
36
=
7
(9)
50
3
3
7
2
3
(
＋
)
2
3
3
7
2
3
=
5
(
＋
)
2
7
2
=
5
＋
5
×
3
5
14
10
=
＋
7
3
(10)
28
3
2
175
3
(
＋
)
3
7
3
2
7
3
=
2
(
＋
5
)
3
4
7
3
7
=
＋
10
×
3
3
4
21
70
=
＋
9
3