简算(要拖式算算)48x54—48x3+48x49=

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简算(要拖式算算)48x54—48x3+48x49=简算(要拖式算算)48x54—48x3+48x49=简算(要拖式算算)48x54—48x3+48x49=48x54—48x3+48x49=48x(5

简算(要拖式算算)48x54—48x3+48x49=
简算(要拖式算算)
48x54—48x3+48x49
=

简算(要拖式算算)48x54—48x3+48x49=
48x54—48x3+48x49
=48x(54-3+49)
=48x100
=4800

48*54-48*3+48*49
=2592-48*3+48*49
=2592-144+48*49
=2592-144+2352
=2448+2352
=4800

=48×(54-3+49)
=48×100
=4800

=48X(54-3+49)
=48X100
=4800