3.5和3.50大小相等,计数单位不同. .
98-49=59
( )
(80-9.8)×-1.32=70.2×-1.32=28.08-1.32=26.76( )
18.1+(3-0.299÷0.23)×1=18.1+1.6×1=18.1+1.6 =19.7( )
(1÷1-1)÷5.1=(1-1)÷5.1 =0÷5.1=0( )