Question

Află numărul necunoscut.
a) a + 573 x 12 = 7 000
b) b - 253 x 98 = 67 498
c) 771 × 11 +c+ 805 = 10.000​

Answer 1

Răspuns:

a) a+6876=7000

a=7000-6876

a=124

b) b-24794=67498

b=67498+24794

b=92292

c) 8481+c+895=10000

8481+c=10000-895

841+c=9105

c=9105-841

c=8264

Answer 2

a)573x12=6876
7000-6876=124
b) 253x98=24794
67498-24794=42704
c)771x11=8481
8481+805=9286
10000-9286=714