Question

DAU TESTTTTT!!!!!!!!!!

Answer 1

Răspuns:

4×a=204

a=204:4

a=51

4×51=204

b:8=245 rest 6

b=8×245+6

b=1960+6

b=1966

1966:8=245 rest 6

384:c=4

c=384:4

c=96

384:96=4

ex3:

a) (145×6)+(624:3)=

870+208=1078

b)(309+597)-(945:7)=

906-135=771

c)717:3=239

d)112:4=28

112:2=56

ex.4

10×25+75×(555-549)=

10×25+75×6=

250+450=700

[(163×4+348):100+182]:2+30690=

[(652+348):100+182]:2+30690=

[1000:100+182]:2+30690=

[10+182]:2+30690=

192:2+30690=

96+30690=30786