Question

solve using distributive property with explanation
1. 571 x 697 - 171 x 697
2. 3845 x 5 x 782 + 769 x 25 x 218
3. 645 + 223 x 645

Answer 1

Answer:

Step-by-step explanation:

1. 571 x 697 - 171 x 697

697×(571-171)

697×400

=278,800

2. 3845 x 5 x 782 + 769 x 25 x 218

(3845×769)×(5×25)×(782+218)

=2,956,805×100×1000

=295680500000

3. 645 + 223 x 645

(645+223)×645

=868×645

=559,860