63×99+63 125×8+168÷4 80×(392-267)
700×30= ( )×50=4000 8×(172+28)=
500×12= ( )÷500=11…1 156-46+44=
450÷30= 80×( )=3200 32×77+32×23=
①102+150÷25+5
②735×(80-600÷25)
③645÷43+28×37
④768÷(83-51)+741
=300÷3×2
=100×2
=200
=26×(400÷5)
=26×80
=2080
=47×100-1
=4700-1
=4699