\(\text{ 725 : 25 + 525 : 25}\\ =\left(725+525\right):25\\ =1250:25\\ =50\)

\(725:25+525:25\\ =\left(725+525\right):25=1250:25=50\)

\(725:25+525:25\\ =\left(725+525\right):25\\ =1250:25\\ =50\)

a: =1250:25=50

b: =234(45+55)+234=23400+234=23634

c: =1000x1000=1000000

525 x 2019 - 2019 x 425 = 2019 x (525 - 425) = 2019 x 100 = 201900

\(525\times2019-2019\times425=2019\times\left(525-425\right)\)

                                                           \(=2019\times100\)

                                                           \(=201900\)

\(525.2019-2019.425\)

\(=\left(525-425\right).2019\)

\(=100.2019\)

\(=20190\)

525 x 2019 - 2019 x 425

= 2019 x ( 525 - 425 )

= 2019 x 100

= 201900

Hok tốt

   525 x 2019 - 2019 x 425

= 2019 x ( 525 - 425 )

= 2019 x 100

= 20190

525 . 2019 - 2019 . 425

= 2019 . ( 525 - 425)

= 2019 . 100

=201900 

a.38 + 41 + 117 + 159 + 62 = (38 + 62) + (41 + 159) + 117 = 100 + 200 + 117 = 300 + 117 = 417

b.341 x 67 + 659 x 83 + 341 x 16 = 341 x (16 + 67) + 659 x 83 = 341 x 83 + 659 x 83 = (341 + 659) x 83 = 1000 x 83 = 83000

a) 38 + 41 + 117 + 159 + 62 = ( 38 + 62 ) + ( 41 + 159 ) + 117 = 100 + 200 + 117 = 417

b) 341 . 67 + 659 . 83 + 342 . 16 = ( 341 + 659 ) . ( 67 + 83 ) . 342 . 16 = 1000 . 150 . ( 342 + 16 ) = 53 700 000

nhớ ủng hộ cho mik với nha các bn

\(\frac{725}{25}+\frac{525}{25}=29+21=50\)

thì bn rút gọn là được chứ có khó j đâu

980

= tính kiểu j thế

1820

a) = (360 + 126 + 123) : 3 = 203

b) = (436 + 164 - 200) : 4 = 100

c) = (525 + 120 - 145) : 5 = 100