Question

3.9×4.6+44×3.9+3.9用简便方法计算怎么计算？

Answer 1

3.9×4.6+44×3.9+3.9用简便方法计算等于3.9x(4.6+44+1)等于3.9x49.6等于193.44

Answer 2

先把算式3.9×4.6+4.4×3.9+3.9写成3.9×4.6+4.4×3.9+3.9×1
然后算式=3.9×（4.6+4.4+1）
最后算式=3.9×10=39

Answer 3

=3.9×（4.6+44+1）=3.9×（50－0.4）=195－1.56=193.44

Answer 4

可以这样算。
3.9x4.6+44x3.9+3.9
=3.9x(4.6+44+1)
=3.9x49.6
=193.44

Answer 5

3.9×46+44×3.9+39
=3.9×（46+44+10）
=3.9×100
=390