Question

62.6×62.6+3.64×636简便计算？

Answer 1

62.6×62.6＋3.64×636
＝62.6×（62.6＋36.4）＋3.64×10
＝62.6×99＋36.4
＝62.6×100一62.6＋36.4
＝6260一（62.6一36.4）
＝6260一26.2
＝6233.8

Answer 2

你好：

解：

62.6×62.6+3.64×636

=62.6×62.6+3.64×626+3.64×10

=62.6×62.6+36.4×62.6+36.4

=62.6×（62.6+36.4）+36.4

=62.6×99+36.4

=62.6×（100-1）+36.4

=62.6×100-62.6×1+36.4

=6260-62.6+36.4

=6233.8

Answer 3

62.6x62.6十3.64x10x（636÷10）＝62.6x62.6十36.4x63.6＝62.6十62.6十36.4x（62.6十1）＝62.6十62.6十36.4x62.6十1×62.6＝（62.6十36.4十1）×62.6＝62600

Answer 4

62.6×62.6+3.64×636
=6.26×626+3.64×626+3.64×10
=626（6.26+3.64）+36.4
=626×9.9+36.4
=626×10一62.6十36.4
=6260一（62.6一36.4）
=6260一26.2
=6233.8

Answer 5

62.6×62.6＋3.64×636简便计算
原式＝62.6×（62.6＋36.4）＋3.64×10
＝62.6×99＋36.4
＝62.6×100一62.6＋36.4
＝6260一（62.6一36.4）
＝6260一26.2
＝6233.8
这道题主要是要找到2个式子的相同点再进一步进行简便计算。根据乘法分配律：是指两个数的和与一个数相乘，可以先把它们分别与这个数相乘，再相加；a×c+b×c=(a+b)×c。