=400×2+8
=8008
( )
=1500÷0×4
=0
①[(91-64)÷3]×60
②6800÷25÷4
③52×101-52
④25×44
⑤64×64+64×36
⑥2.7+5.09+7.3+4.91
①74×201
②1300-300÷25×4
③147×48-48×47
④32×125×25
⑤535-128-72
⑥199+136+281+174