2数の減法L2-3(6問)
次の計算をせよ。
(+14)-(-5)
解答○ ×(-4)-(+12)
解答○ ×(-3)-(+13)
解答○ ×(-17)-(+9)
解答○ ×(+7)-(-16)
解答○ ×(+8)-(-19)
解答○ ×問題と解答
(+14)-(-5)19 (-4)-(+12)-16 (-3)-(+13)-16 (-17)-(+9)-26 (+7)-(-16)23 (+8)-(-19)27
(+14)-(-5)19 (-4)-(+12)-16 (-3)-(+13)-16 (-17)-(+9)-26 (+7)-(-16)23 (+8)-(-19)27
