Question

求一道数学简算题2.5*4.6+0.25*46

Answer 1

2.5*4.6+0.25*46

=2.5×4.6+（0.25×10）×（46÷10)

=2.5×4.6+2.5×4.6

=2.5×（4.6+4.6）

=2.5×9.2

=23