99+49*99简便运算 急
问题描述:
99+49*99简便运算 急
答
99*(49+1)=99*50
答
99+49*99=(1+49)x(100-1)
=50x100-50
=4950
答
99*50=4950
答
=(1+49)*99=50*99=4950
答
=(49+1)*99
=50*99
=50*100-50
=5000-50
=4950
答
99+49*99=99*(49+1)=99*50=50*(100-1)=5000-50=4950
答
99*(49+1)=99*50 =4950