2数の減法L3-6(小数)(6問)
次の計算をせよ。
(+29.1)-(+42.8)
解答○ ×(-0.02)-(-0.29)
解答○ ×(-3.05)-(-8.27)
解答○ ×(-28.4)-(+45.3)
解答○ ×(+1.02)-(-3.44)
解答○ ×(+9.17)-(-15.44)
解答○ ×問題と解答
(+29.1)-(+42.8)-13.7 (-0.02)-(-0.29)0.27 (-3.05)-(-8.27)5.22 (-28.4)-(+45.3)-73.7 (+1.02)-(-3.44)4.46 (+9.17)-(-15.44)24.61
