Question

Calculati a+b , a-b , a×b si a:b unde:
nu vreau direct raspunsul. vreau toata operatia cum s.a facut. si 2.

Answer 1

1) Calculati a+b;a-b;a*b si a:b

a=(650-12*50)*(14100-9400):235
a=(650*50)*4700:335
a=50*20
a=1000

b=(90*70-70*50-50*30-30*10):2
b=(6300-3500-1500-300):2
b=(2800-1500-300):2
b=(1300-300):2
b=1000:2
b=500

a=1000 si b=500

a+b=>100+500=1500
a-b=>100-500=500
a*b=1000*500=500000
a:500=2

2)
 
a=16*7-5*16-72:8
a=112-80-9
a=23

b=64:8+13*4-4*14
b=8+52-56
b=4

c=342:6-168:8
c=57-21
c=36

Calculati:

a)3a-3b+c
   3*23-2*4+36=69-8+36=97

b)4a-3b+2c
   4*23-3*8+2*36=92-24+72=140