Question

Tính bằng cách thuận tiện nhất:

a)   175× 582-25 ×582

b)   81 × 365 + 18 ×365 +365

Answer 1

Cái gì khó có gg ok

Answer 2

a)   175× 582-25 ×582

= ( 175 - 25 ) x 582

= 150 x 582

= 87300

 

b)   81 × 365 + 18 ×365 +365

=  81 × 365 + 18 × 365 + 365 x 1

= ( 81 + 18 + 1 ) x 365

= 100 x 365

= 36500

Answer 3

a) \(175\times582-25\times582\)

\(=582\times\left(175-25\right)\)

\(=582\times150\)

\(=87300\)

b) \(81\times365+18\times365+365\)

\(=81\times365+18\times365+365\times1\)

\(=365\times\left(81+19+1\right)\)

\(=365\times100=36500\)

Answer 4

a, \(=582\) x \(\left(175-25\right)=582\) x \(150=87300\)

b, \(=365\) x \(\left(81+18+1\right)=365\) x \(100=36500\)

Answer 5

a)   175× 582-25 ×582

= ( 175 - 25 ) x 582

= 150 x 582

= 87300

b)  81 × 365 + 18 ×365 +365

=  81 × 365 + 18 × 365 + 365 x 1

= ( 81 + 18 + 1 ) x 365

= 100 x 365

= 36500

Answer 6

a)   175× 582-25 ×582

=(175-25)x582

=150x582

=87 300

b)   81 × 365 + 18 ×365 +365

=81 × 365 + 18 ×365 +365x1

=(81+18+1)x365

=100x365

=36 500

Answer 7

a) =582×(175-25)
    =582x150
    =87300
b) =365×(81+18+1)
    =365x100
    =36500

Answer 8

a)87 300

b)36 500