Question

12*99*12怎样用简便方法计算?

12*99*12怎样用简便方法计算?

Answer 1

12*99*12=12*12*99=144*(100-1)=14400-144=14256

Answer 2

12×99×12
=12×12×(100-1)
=12×12×100-12×12×1
=14400-144
=14256

Answer 3

12*12*100-144
=144*100
=14400-144
=14256