一个数(0除外)除以0.01,等于把这个数扩大到它的100倍. .(判断对错)
(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( )
14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7="8.3×6.3+8.3×3.7" 8.3×(6.3+3.7) =8.3×10=83( )
2881÷43=(1290+1591)÷434=1290÷43+1591÷43=30+37=67( )