Question

836+199= 25.3+50.1= 1632-698= 48.5-30.1= 35+199= 540除36= 43.

Answer 1

836+199=836+200-1=1035

25.3+50.1=25+50+0.3+0.1=75.4

1632-698=1632-700+2=934

48.5-30.1=48-30+0.5-0.1=18+0.4=18.4

35+199=35+200-1=234

540/36=540/(4*9)=(540/9)/4=15

43.7*2/5+43.7/(二又二分之一）=43.7*(3/5+2/5)=43.7*1=43.7