Răspuns:
1255 l+575 l = 1830 l
1830 i-575 l=1255 l
4200 ml-2765 ml=1435 ml
1435+2765=4200 ml
6 dal×9 =54 dal
54:9=6 dal
54:6=9 dal
28 kl:4=7 kl
7×4=28 kl
____________
125+ a + 469 = 1 000
a+594=1000
a=1000-594
a=406
b-48-62 = 195
b=195+48+62
b=305
(b +326)-183 = 477
b+326=477+183
b=660-326
b=334
620-c-279 = 97
c=341-97
c=244
800-(c +684) = 111
c+684=800-111
c=689-684
c=5