2数の減法L2-1(6問)
次の計算をせよ。
(+4)-(-2)
解答○ ×(-5)-(+1)
解答○ ×(-1)-(+4)
解答○ ×(+2)-(-5)
解答○ ×(-6)-(+4)
解答○ ×(+3)-(-3)
解答○ ×問題と解答
(+4)-(-2)6 (-5)-(+1)-6 (-1)-(+4)-5 (+2)-(-5)7 (-6)-(+4)-10 (+3)-(-3)6
(+4)-(-2)6 (-5)-(+1)-6 (-1)-(+4)-5 (+2)-(-5)7 (-6)-(+4)-10 (+3)-(-3)6
