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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
45
(
＋
4
)
(2)
63
7
(
3
＋
)
(3)
27
3
(
−
9
)
(4)
12
3
27
(
＋
)
(5)
75
27
(
＋
6
)
(6)
175
7
(
2
＋
)
(7)
5
3
5
(
＋
)
(8)
27
3
7
(
＋
)
(9)
7
7
(
2
＋
)
(10)
50
8
(
−2
＋
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
125
45
(
＋
4
)
5
5
=
5
(
3
＋
4
)
5
=
15
×
5
＋
20
5
=
75
＋
20
(2)
63
7
(
3
＋
)
7
7
=
3
(
3
＋
)
7
=
9
＋
3
×
7
7
=
9
＋
21
(3)
27
3
(
−
9
)
3
3
=
3
(
−
9
)
3
=
3
×
3
−
27
3
=
9
−
27
(4)
12
3
27
(
＋
)
3
3
3
=
2
(
＋
3
)
=
2
×
3
＋
6
×
3
=
24
(5)
75
27
(
＋
6
)
3
3
=
5
(
3
＋
6
)
3
=
15
×
3
＋
30
3
=
45
＋
30
(6)
175
7
(
2
＋
)
7
7
=
5
(
2
＋
)
7
=
10
＋
5
×
7
7
=
10
＋
35
(7)
5
3
5
(
＋
)
15
=
＋
5
15
=
＋
5
(8)
27
3
7
(
＋
)
3
3
7
=
3
(
＋
)
21
=
3
×
3
＋
3
21
=
9
＋
3
(9)
7
7
(
2
＋
)
7
=
2
＋
7
7
=
2
＋
7
(10)
50
8
(
−2
＋
)
2
2
=
5
(
−2
＋
2
)
2
=
−10
＋
10
×
2
2
=
−10
＋
20