Question

3.5×4.6+6.5×1.06的简便运算？

Answer 1

3.5×4.6+6.5×1.06的简便运算？
3.5×4.6+6.5×1.06
=0.001x(35x460+65x106)
=0.001x[35x(106+354)+65x106]
=0.001x[106x(35+65)+35x(300+50+4)]
=0.001x[10600+10500+1750+140]
=10.6+10.5+1.75+0.14
=21.1+1.89
=22.99

Answer 2

3.5×4.6+6.5×4.6
=(3.5+6.5)×4.6
=46