1.27×36—13×27+27×17
=27×(36-13+17)
=27×6
=162
2.246÷4×8
=246×(8÷4)
=246×2
=492
3.2043—598+199
=2043-600+2+200-1
=1643+1
=1644
4.672÷8+328÷8
=(672+328)÷8
=1000÷8
=125
1.27×36—13×27+27×17
=27×(36-13+17)
=27×6
=162
2.246÷4×8
=246×(8÷4)
=246×2
=492
3.2043—598+199
=2043-600+2+200-1
=1643+1
=1644
4.672÷8+328÷8
=(672+328)÷8
=1000÷8
=125