Question

7.Tính bằng cách thuận tiện:

(2003 x 58 + 52 x 2003 - 10 x 2003) + (670-335) x 100

Answer 1

\(=2003\times\left(58+52-10\right)+335\times100\)

\(=100\times\left(2003+335\right)=233800\)

Answer 2

(2003 x 58 + 52 x 2003 - 10 x 2003) + (670-335) x 100

= 2003 x ( 58 + 52 - 10 ) + 335 x 100

= 2003 x 100 + 335 x 100

= ( 2003 + 335 ) x 100

= 2338 x 100

233 800