a: \(58\cdot75+58\cdot50-58\cdot25\)
\(=58\left(75+50-25\right)\)
\(=58\cdot100=5800\)
h: \(48\cdot19+48\cdot115+134\cdot52\)
\(=48\cdot\left(19+115\right)+134\cdot52\)
\(=134\cdot48+134\cdot52\)
\(=134\left(48+52\right)=134\cdot100=13400\)
b: \(27\cdot39+27\cdot63-27\cdot2\)
\(=27\left(39+63-2\right)\)
\(=27\cdot100=2700\)
i: \(27\cdot121-87\cdot27+73\cdot34\)
\(=27\left(121-87\right)+73\cdot34\)
\(=27\cdot34+73\cdot34\)
\(=34\left(27+73\right)=34\cdot100=3400\)
a) 58 . 75 + 58 . 50 - 58 . 25
= 58.(75 + 50 - 25)
= 58.100
= 5800
b) 27.39 + 27.63 - 2.27
= 27.(39 + 63 - 2)
= 27.100
h) 48.19 + 48.115 + 134.52
= 48.(19 + 115) + 134.52
= 48.134 + 134.52
= 134.(48 + 52)
= 134.100
= 13400
i) 27.121 - 87.27 + 73.34
= 27.(121 - 87) + 73.34
= 27.34 + 73.34
= 34.(27 + 73)
= 34.100
= 3400
1- a) 58.75 + 58.50 -58.25
= 58.( 75 + 50 - 25 ) = 58. 100 = 5 800
b) 27.39+27.63-2.27
= 27.( 39 + 63 - 2 ) = 27.100 = 2 700
c) 48.19 + 48.115 + 134.52
=48⋅(19+115)+134⋅52
=134⋅48+134⋅52
=134.(48+52)=134⋅100= 13 400
i: 27⋅121−87⋅27+73⋅34
= 27(121−87)+73⋅34
= 27⋅34 + 73 ⋅34
= 34(27+73) = 34⋅100 = 34 00
--thodagbun--
