你好!
这道题需要用简便算法算.
44*99+55*99
=(44+55)*99
=(100-1)*99
=9900-99
=9801
47*53+53*53
=(47+53)*53
=100X53
=5300
1+36*36+36*64
=1+(36+64)X36
=1+100X36
=1+3600
=3601
如果不懂请追问.
你好!
这道题需要用简便算法算.
44*99+55*99
=(44+55)*99
=(100-1)*99
=9900-99
=9801
47*53+53*53
=(47+53)*53
=100X53
=5300
1+36*36+36*64
=1+(36+64)X36
=1+100X36
=1+3600
=3601
如果不懂请追问.