56乘1.25的简便计算 0.24乘于7.5乘于2.5用简便法怎么计算

0.24乘于7.5乘于2.5用简便法怎么计算  

0.24乘于7.5乘于2.5用简便法怎么计算

0.24*7.5*2.5
＝0.01*4*2*3*7.5*2.5
＝0.01*（4*2.5）*（2*7.5）*3
＝0.01*10*15*3
＝1.5*3
＝4.5

0.46乘7.5加0.46乘2.5怎样用简便方法计算

解：依题意得算式，
0.46×7.5+0.46×2.5
=0.46×（7.5+2.5）
=0.46×10
=4.6
即0.46×7.5+0.46×2.5=4.6

(16.5乘2.5+2.5乘7.5)除0.12 简便计算

(16.5×2.5+2.5×7.5)÷0.12
=2.5×(16.5+7.5)÷0.12
=2.5×(24÷0.12)
=2.5×200
=500

3.25乘以2.5加上3.25乘以7.5用简便方法计算等于多少.

原式
=3.25x2.5+3.25x7.5
=3.25x(2.5+7.5)
=3.25x10
=32.5

3.6除以4乘2.5加7.5用简便方法计算

3.6除以4乘2.5加7.5用简便方法计算
3.6除以4乘2.5加7.5
=0.9*2.5+7.5
=2.25+7.5
=9.75

2.5乘4.8乘12.5 用简便方法怎么计算

2.5*4.8*12.5
=2.5*(0.6*8)*12.5
=2.5*(8*12.5)*0.6
=2.5*100*0.6
=25*6
=150

1.8除以7.5乘法2.5怎么样简便计算

1.8除以7.5乘法2.5
=1.8÷（7.5÷2.5）
=1.8÷3
=0.6

用简便方法计算(7.5x4.8)除以(2.4乘2.5)

用简便方法计算(7.5x4.8)除以(2.4乘2.5)
(7.5x4.8)÷(2.4x2.5)
=7.5÷2.5x(4.8÷2.4)
=3x2
=6

0.84乘0.4乘2.5用简便方法计算

0.84×0.4×2.5
=0.84×（0.4×2.5）
=0.84×1
=0.84

2.5乘95乘4用简便方法计算

2.5×95×4
=2.5×4×95
=10×95
=950