题目

计算46×23＋54×23，先注意观察，算式中有两个乘法，两个乘法有一个相同的因数，可以先计算加用计算的结果乘，结果是。 答案：【1】23【2】46【3】54【4】23【5】23006. (2015 •福建津州) 一Ben,why are you watching TV at this time? How about your homework?—I all of it,Mom. I want to have a rest.   A. finish   B. am finishing   C. have finished