故事书285页,小丽每天看28页看了5天,还剩多少页没看完?
285-28×5=145(页)
对错我来判。(对的画“√”,错的画“×”)
1.在有括号的算式里,要先算括号里面的。 [ ]
2.计算四则运算题时,要按照从左往右的顺序依次计算。[ ]
3.计算28÷4+16×5时,可以同时计算28÷4和16×5。 [ ]
4.5×(120-80)÷40=600-2 =598。[ ]
My brother was making a-lot of noise _____ I was doing my homework. [ ]
A. but
B. and
C. while