3.6*2.36+3.61*6.4怎么巧算
1个回答

3.6×2.36+3.61×6.4

=3.6×2.36+(2.36+1.25)×6.4

=3.6×2.36+2.36×6.4+1.25×6.4

=2.36×(3.6+6.4)+5/4×6.4

=2.36×10+5×1.6

=23.6+8

=31.6【望采纳,