Question

5.6X69.32+138.64X0.05+693.2X0.43简算写主要过程

Answer 1

5.6X69.32+138.64X0.05+693.2X0.43

=5.6×69.32+69.32×4.3+138.64×0.05

=(5.6+4.3)×69.32+69.32×2×0.05

=10×69.32+69.32+0.1

=693.2+6.932

=693.2+6.8+0.132

=700+0.132

=700.132