3数の加法減法-1(6問)
次の計算をせよ。
(+5)+(+2)-(+3)
解答○ ×(-2)+(+3)-(+6)
解答○ ×(+4)-(-2)+(+5)
解答○ ×(+6)-(+9)+(-4)
解答○ ×(-7)+(+8)-(+5)
解答○ ×(-2)-(+5)+(-7)
解答○ ×問題と解答
(+5)+(+2)-(+3)4 (-2)+(+3)-(+6)-5 (+4)-(-2)+(+5)11 (+6)-(+9)+(-4)-7 (-7)+(+8)-(+5)-4 (-2)-(+5)+(-7)-14
