3数の減法(小数)-1(6問)
次の計算をせよ。
(+0.1)-(+0.5)-(+0.3)
解答○ ×(-0.2)-(-0.4)-(-0.6)
解答○ ×(-0.2)-(+0.5)-(-0.3)
解答○ ×(+0.6)-(-0.9)-(+0.2)
解答○ ×(-0.7)-(-0.8)-(+0.5)
解答○ ×(+1.2)-(+1.5)-(-0.7)
解答○ ×問題と解答
(+0.1)-(+0.5)-(+0.3)-0.7 (-0.2)-(-0.4)-(-0.6)0.8 (-0.2)-(+0.5)-(-0.3)-0.4 (+0.6)-(-0.9)-(+0.2)1.3 (-0.7)-(-0.8)-(+0.5)-0.4 (+1.2)-(+1.5)-(-0.7)0.4
