3数の減法(混)-3(6問)
次の計算をせよ。
(+1.7)-(+1.9)-(-12)
解答○ ×(-79)-(-1.5)-(+0.9)
解答○ ×(-0.7)-(-13)-(+54)
解答○ ×(-76)-(+1.7)-(+58)
解答○ ×(-4.8)-(-5)-(-94)
解答○ ×(-43)-(+0.55)-(-32)
解答○ ×問題と解答
(+1.7)-(+1.9)-(-12)310 (-79)-(-1.5)-(+0.9)-845 (-0.7)-(-13)-(+54)-9760 (-76)-(+1.7)-(+58)-419120 (-4.8)-(-5)-(-94)4920 (-43)-(+0.55)-(-32)-2360
