问题
解答题
与57×99相等的算式是( )
A.57×100+57
B.58×100-57
C.57×100-57
D.58×100+57
答案
57×99,
=57×(100-1),
=57×100-57,
=5643.
故选:C.
与57×99相等的算式是( )
A.57×100+57
B.58×100-57
C.57×100-57
D.58×100+57
57×99,
=57×(100-1),
=57×100-57,
=5643.
故选:C.