Răspuns:
Explicație pas cu pas:
a : ( 524 : 4 - 128 ) = 255 rest 2
a : ( 131 - 128 ) = 255 rest 2
a : 3 = 255 rest 2
a = 255 × 3 + 2 → aplic teorema impartirii cu rest
a = 765 + 2
a = 767 -> numarul, aflat prin metoda mersului invers
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b : ( 600 : 6 - 19 × 5 ) = 163 rest 4
b : ( 100 - 95 ) = 163 rest 4
b : 5 = 163 rest 4
b = 163 × 5 + 4
b = 815 + 4
b = 819
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c : ( 9 500 : 100 - 43 × 2 ) = 106 rest 8
c : ( 95 - 86 ) = 106 rest 8
c : 9 = 106 rest 8
c = 106 × 9 + 8
c = 954 + 8
c = 962
