3数の減法(分数)-1 (6問)
次の計算をせよ。
(+3)-(-14)-(-2)
解答○ ×(-2)-(+52)-(+4)
解答○ ×(-5)-(-72)-(-54)
解答○ ×(+56)-(+7)-(+32)
解答○ ×(-18)-(+54)-(-1)
解答○ ×(-43)-(+16)-(-52)
解答○ ×問題と解答
(+3)-(-14)-(-2)214 (-2)-(+52)-(+4)-172 (-5)-(-72)-(-54)-14 (+56)-(+7)-(+32)-233 (-18)-(+54)-(-1)-38 (-43)-(+16)-(-52)1
