乗法
[0]
(+5) ✕ (+6)
=
答え
ｘ
+30
[1]
(-6) ✕ (+2)
=
答え
ｘ
-12
[2]
(-5) ✕ (+2)
=
答え
ｘ
-10
[3]
(+4) ✕ (+7)
=
答え
ｘ
+28
[4]
(+5) ✕ (+2)
=
答え
ｘ
+10
[5]
(-6) ✕ (+9)
=
答え
ｘ
-54
[6]
(+3) ✕ (+2)
=
答え
ｘ
+6
[7]
(+9) ✕ (+2)
=
答え
ｘ
+18
[8]
(-7) ✕ (+6)
=
答え
ｘ
-42
[9]
(+3) ✕ (-8)
=
答え
ｘ
-24
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