2数の減法L3-1(小数)(6問)
次の計算をせよ。
(+1)-(+0.6)
解答○ ×(-2)-(-0.8)
解答○ ×(+1.8)-(+2.8)
解答○ ×(-0.2)-(-0.3)
解答○ ×(-2.5)-(-0.9)
解答○ ×(+1.8)-(+2.9)
解答○ ×問題と解答
(+1)-(+0.6)0.4 (-2)-(-0.8)-1.2 (+1.8)-(+2.8)-1 (-0.2)-(-0.3)0.1 (-2.5)-(-0.9)-1.6 (+1.8)-(+2.9)-1.1
(+1)-(+0.6)0.4 (-2)-(-0.8)-1.2 (+1.8)-(+2.8)-1 (-0.2)-(-0.3)0.1 (-2.5)-(-0.9)-1.6 (+1.8)-(+2.9)-1.1
