Question

$(357 + 298 + 428) + (102 + 572 + 643)$
памагите​

Answer 1

( 357 + 298 + 428 ) + ( 102 + 572 + 643 ) = 2 400

1) 357 + 298 = 655

2) 655 + 428 = 1 083

3) 102 + 572 = 674

4) 674 + 643 = 1 317

5) 1 083 + 1 317 = 2 400

Ответ: 2 400.