Question

Exersez! Află numărul necunoscut, folosind metoda mersului invers. a + 101 = 1002 b-2015 = 3 600 e+2 300- 1 000-810 = 550 c-19 128 008 f-1500 + 980 - 514 = 1670 = d+ 700 000 = 990 000 g + 6 000 - 369 - 11 000 = 44​

Answer 1

Răspuns:

a + 101 = 1002

a=1002-101=>a=901

b-2015 = 3 600 =>b=3600+2015=>b=5615

e+2 300-1 000-810 = 550 =>e=550+1000+810-2300=>e=60

c-19= 128 008 =>c=128008+19=>c=128027

f-1500 + 980 - 514 = 1670 =>f=1670+1500-980+514=>f= 2704

d+ 700 000 = 990 000 =>d=990000-700000=>d=290000

g + 6 000 - 369 - 11 000 = 44​=>g=44+11000+369-6000=>g=5413