笔算下面各题.带△的要验算 45×67= 42.3+15.9= △620÷4= 89×64= 10

2024-12-16 00:51:51
推荐回答(1个)
回答1:

(1)45×67=3015;


(2)42.3+15.9=58.2;


(3)620÷4=155;



(4)89×64=5696;


(5)10-3.8=6.2;


(6)504÷5=100…4.