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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 計算しなさい
[1Q3-00]
(1)
7
63
(
−8
＋
)
(2)
45
2
5
(
＋
)
(3)
3
3
(
5
＋
)
(4)
125
2
125
(
＋
)
(5)
175
7
(
−6
＋
)
(6)
5
3
125
(
＋
)
(7)
125
125
3
(
＋
)
(8)
75
3
(
−10
＋
)
(9)
175
7
7
(
＋
)
(10)
27
3
(
−
8
)
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
7
63
(
−8
＋
)
7
7
=
(
−8
＋
3
)
7
=
−8
＋
3
×
7
7
=
−8
＋
21
(2)
45
2
5
(
＋
)
5
2
5
=
3
(
＋
)
10
=
3
＋
3
×
5
10
=
3
＋
15
(3)
3
3
(
5
＋
)
3
=
5
＋
3
3
=
5
＋
3
(4)
125
2
125
(
＋
)
5
2
5
=
5
(
＋
5
)
10
=
5
＋
25
×
5
10
=
5
＋
125
(5)
175
7
(
−6
＋
)
7
7
=
5
(
−6
＋
)
7
=
−30
＋
5
×
7
7
=
−30
＋
35
(6)
5
3
125
(
＋
)
5
3
5
=
(
＋
5
)
15
=
＋
5
×
5
15
=
＋
25
(7)
125
125
3
(
＋
)
5
5
3
=
5
(
5
＋
)
15
=
25
×
5
＋
5
15
=
125
＋
5
(8)
75
3
(
−10
＋
)
3
3
=
5
(
−10
＋
)
3
=
−50
＋
5
×
3
3
=
−50
＋
15
(9)
175
7
7
(
＋
)
7
7
7
=
5
(
＋
)
=
5
×
7
＋
5
×
7
=
70
(10)
27
3
(
−
8
)
3
3
=
3
(
−
8
)
3
=
3
×
3
−
24
3
=
9
−
24