Question

a)A=4765+379-4755-378

b) B =(431+435+436)-(31+35+36)

Answer 1

a: =10+1=11

b: =431+435+436-31-35-36

=400+400+400

=1200

Answer 2

a. A = 4765 + 379 - 4755 - 378

A = (4765 - 4755) + (379 - 378)

A = 10 + 1

A = 11

Vậy A = 11.

b. B = (431 + 435 + 436) - ( 31 + 35 + 36) 

B = 431 + 435 + 436 - 31 - 35 - 36

B = (431 - 31) + (435 - 35) + (436 - 36)

B = 400 + 400 + 400

B = 400 . 3 = 1200

Vậy B = 1200.