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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
5
125
3
(
＋
)
(2)
45
20
5
(
＋
)
(3)
27
3
(
−
4
)
(4)
5
45
2
(
＋
)
(5)
5
5
3
(
＋
)
(6)
63
28
(
5
＋
)
(7)
5
5
(
−10
＋
)
(8)
28
175
(
＋
10
)
(9)
3
3
2
(
＋
)
(10)
2
2
7
(
＋
)
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
5
125
3
(
＋
)
5
5
3
=
(
5
＋
)
15
=
5
×
5
＋
15
=
25
＋
(2)
45
20
5
(
＋
)
5
5
5
=
3
(
2
＋
)
=
6
×
5
＋
3
×
5
=
45
(3)
27
3
(
−
4
)
3
3
=
3
(
−
4
)
3
=
3
×
3
−
12
3
=
9
−
12
(4)
5
45
2
(
＋
)
5
5
2
=
(
3
＋
)
10
=
3
×
5
＋
10
=
15
＋
(5)
5
5
3
(
＋
)
15
=
5
＋
15
=
5
＋
(6)
63
28
(
5
＋
)
7
7
=
3
(
5
＋
2
)
7
=
15
＋
6
×
7
7
=
15
＋
42
(7)
5
5
(
−10
＋
)
5
=
−10
＋
5
5
=
−10
＋
5
(8)
28
175
(
＋
10
)
7
7
=
2
(
5
＋
10
)
7
=
10
×
7
＋
20
7
=
70
＋
20
(9)
3
3
2
(
＋
)
6
=
3
＋
6
=
3
＋
(10)
2
2
7
(
＋
)
14
=
2
＋
14
=
2
＋