我是郑太太
幼苗
共回答了20个问题采纳率:85% 举报
简便计算求解答
5.5乘4.4-4.4乘3.3-4.4乘2.2
=(5.5-3.3-2.2)×4.4
=0×4.4
=0
0.00695乘2500+69.5乘0.24+5.1乘6.95
=6.95×2.5+6.95×2.4+5.1×6.95
=6.95×(2.5+2.4+5.1)
=6.95×10
=69.5
4.7乘2.8+2.5乘2.8+7.2乘7.2
=(4.7+2.5)×2.8+7.2×7.2
=7.2×2.8+7.2×7.2
=7.2×(2.8+7.2)
=7.2×10
=72
1年前
2