Question

简便运算31乘55加68乖55加55

Answer 1

简便运算31乘55加68乖55加55

=55×31+55×68+55×1
=55×（31+68+1)
=55×100
=5500

438乘55加62乘55的简便运算是

438乘55加62乘55的简便运算是
438*55+62*55
=55*（438+62）
=55*500
=27500

5.4乘550加46加55简便运算

原式
=5.4x550+46x55
=54x55+46x55
=(54+46)x55
=100x55
=5500
或者
=5.4x550+4.6x550
=(5.4+4.6)x550
=10x550
=5500
供参考。

5.8乘4.5加0.558乘55简便运算

简便运算
5.8×4.5+0.58×55
=5.8×4.5+5.8×5.5
=5.8×（4.5+5.5）
=5.8×10
=58

13乘46加13乘55减13简便运算

13×46+13×55-13
=13×（46+55-1）
=13×100
=1300

21×-45加36×45加21×55加55×36简便运算

21×45加36×45加21×55加55×36简便运算
21×45+36×45+21×55+55×36
＝（21+36）x45+(21+36)x55
=57x45+57x55
=57x(45+55)
=57x100
=5700

51.2乘55加51.2乘40加51.2乘5怎样简便运算

51.2乘55加51.2乘40加51.2乘5
=51.2×（55+40+5）
=51.2×100
=5120

4.5乘2.57减0.45乘10.7加15乘55的简便运算

4.5乘2.57减0.45乘10.7加15乘55
= 4.5*（2.57 - 1.07 ）+ 15*(50+5)
= 4.5*2.5 + 750 + 75
= 836.25

250-32-55-68的简便运算

250-32-55-68
=250-（32+68）-（50+5）
=250-100-50-5
=150-50-5
=100-5
=95