125×32×25×944×25102×28308×81+308×20-30896000÷125÷825×89×4.
除法
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(1)125×32×25×9
=(125×8)×(4×25)×9
=1000×100×9
=900000;(2)44×25
=40×25+4×25
=100+100
=1100;(3)102×28
=100×28+2×28
=2800+56
=2856;(4)308×81+308×20-308
=308×(81+20-1)
=308×100
=30800;(5)96000÷125÷8
=96000÷(125×8)
=96000÷1000
=96;(6)25×89×4
=25×4×89
=100×89
=8900.
