A-A+
填空.47×2=______+______=______45×3=0.8×______=__
问题详情
填空. (1)47×2=47+47=87;4 7×2=______+______=______ 4 5×3=0.8×______=______ 3 10+ 3 10+ 3 10=______×______=______ 1 4+ 1 4+…+ 1 4
参考答案
(2)45×3=0.8×3=2.4;
(3)310+310+310=310×3=910;
(4)14+14+…14考点: