Question

4.4*57.8+45.3*5.6 简便怎么算啊？？

Answer 1

4.4*45.3+45.3*5.6+4.4*12.5
=45.3*(4.4+5.6)+12.5*4.4
=453+8*0.55*4.4
=453+55
=508

Answer 2

4.4×45.3+45.3×5.6+4.4×12.5
=10×45.3+0.55×100
=453+55
=503