Question

小小神算家。（口算） 15.6+2.8= 0.67+1.24= 0.8÷100= 1.75×0.1= 0.63÷0.3= 1.82+6.03= 0.96÷3.2= 7a+3a= 6b-4b= a×a= x+3x= 2.5y-0.5y=

Answer 1

18.4；1.91；0.008；0.175；2.1；7.85；0.3；10a；2b；a²；4x；2y