4.4×57.8+ 45.3× 5.6简便运算!
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/25 07:07:43
4.4×57.8+ 45.3× 5.6简便运算!
这道题怎么算啊?!?简便运算!要简便!
这道题怎么算啊?!?简便运算!要简便!
![4.4×57.8+ 45.3× 5.6简便运算!](/uploads/image/z/17837539-43-9.jpg?t=4.4%C3%9757.8%2B+45.3%C3%97+5.6%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%21)
4.4×57.8+ 45.3× 5.6
=4.4×(45.3+12.5)+45.3×5.6
=4.4×45.3+4.4×12.5+45.3×5.6
=45.3×(4.4+5.6)+12.5×4×1.1
=45.3×10+50×1.1
=453+55
=508
=4.4×(45.3+12.5)+45.3×5.6
=4.4×45.3+4.4×12.5+45.3×5.6
=45.3×(4.4+5.6)+12.5×4×1.1
=45.3×10+50×1.1
=453+55
=508