如题所述
6.3x38-0.36x80+6.3x70
=6.3x（70+38）-0.36x80
=6.3x108-0.36x80
=6.3x100+6.3x8-3.6x8
=630+8x（6.3-3.6）
=630+8x2.7
=630+21.6
=651.6
以上就是简便计算过程。
=6.3x（70+38）-0.36x80
=6.3x108-0.36x80
=6.3x100+6.3x8-3.6x8
=630+8x（6.3-3.6）
=630+8x2.7
=630+21.6
=651.6
以上就是简便计算过程。
温馨提示：答案为网友推荐，仅供参考
第1个回答 2020-07-14
原式也就是6.3×38-0.36×80+6.3×70
解：原式=6.3×（38+70）-0.36×80
=6.3×108-0.36×80
=6.3×100+6.3×8-0.36×100+0.36×20
=630+50.4-36+7.2=651.6
解：原式=6.3×（38+70）-0.36×80
=6.3×108-0.36×80
=6.3×100+6.3×8-0.36×100+0.36×20
=630+50.4-36+7.2=651.6
第2个回答 2020-07-14
6.3*38-0.36*8+6.3*70=6.3*(38+70)-0.36*80=63*(30+8+70)-0.36*80=6.3*100+6.3*8-0.36*80=630+0.63*80-0.36*80=630+(0.63-0.36)*80=630+0.25*80=632
