Question

5. Afla numerele necunoscute:
a) a + 12 x 39 = 1 147
b) b - 24 x 45 = 38 x 123
c) 132 x 4 - C + 12 x 2 = 348
d) 15 x 19 + 245 x 7+ d = 2 900
Care alvarea fiecareia dintre probleme intr-un exercitiu​

Answer 1

Răspuns:

a+468=1147

a=1147-468

a=679

b-1080=4674

b=4674+1080

b=5754

528-c+24=348

528-c=348-24

528-c=324

c=528-324

c=204

285+1715+d=2900

2000+d=2900

d=2900-2000

d=900