3数の減法-1(6問)
次の計算をせよ。
(+6)-(+3)-(+2)
解答○ ×(-2)-(-1)-(-3)
解答○ ×(+9)-(+5)-(+2)
解答○ ×(+3)-(+5)-(+7)
解答○ ×(-8)-(-3)-(-4)
解答○ ×(-6)-(-7)-(-5)
解答○ ×問題と解答
(+6)-(+3)-(+2)1 (-2)-(-1)-(-3)2 (+9)-(+5)-(+2)2 (+3)-(+5)-(+7)-9 (-8)-(-3)-(-4)-1 (-6)-(-7)-(-5)6
