北师大版三年级数学上册《里程表》(二)
950-902=48
328十396十204
=724+204
=928
468十376-168
=844-168
=676
567+433=1000
900-281-430
=619-430
=189
859-(162+88)
=859-250
=609
北师大版三年级数学上册《里程表》(二)
950-902=48
328十396十204
=724+204
=928
468十376-168
=844-168
=676
567+433=1000
900-281-430
=619-430
=189
859-(162+88)
=859-250
=609