Question

Completeaza ? Nu stiu cum se face ajutor

Answer 1

31.

1.

324+173=899-a

497=899-a

899-a=497

a=899-497

a=402

2.

b-634=977-742

b-634=235

b=235+634

b=869

3.

713+c=335+631

713+c=966

c=966-713

c=253

4.

685-432=d+121

253=d+121

d+121=253

d=253-121

d=132

5.

h+312=546+133

h+312=679

h=679-312

h=367

6.

755-e=874-652

755-e=222

e=755-222

e=533

7.

936-425=f+511

511=f+511

f+511=511

f=511-511

f=0

8.

875-323=142+g

552=142+g

142+g=552

g=522+142

g=664