3数の加法(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)0.9 (-0.2)+(-0.4)+(-0.6)-1.2 (-0.2)+(+0.5)+(-0.3)0 (+0.6)+(-0.9)+(+0.2)-0.1 (-0.7)+(-0.8)+(+0.5)-1 (+1.2)+(+1.5)+(-0.7)2
