Question

afla numerele necunoscute: a+ 560= 780 / b+ 2340=5687 / c- 2315=1324 / d- 345= 1 300 / 4500 + e =6 800 325 +f = 330 / 6 500 - g =2 300 / 8 794- h =4 326

Answer 1

Răspuns:

a=780-560

a=220

b=5687-2340

b=2347

c=1324+2315

c=3639

d=1300+345

d=1645

e=6800-4500

e=2300

f=330-325

f=5

g=6500-2300

g= 4200

h=8794-4326

h=4468

Answer 2

Explicație pas cu pas:

a+560=780

a=780-560

a=220

v:220+560=780

b+2 340=5 687

b=5 687-2 340

b=3 347

v:3 347+2 340=5 687

c-2 315=1 324

c=1 324+2 315

c=3 639

v:3 639-2 315=1 324

d-345=1 300

d=1 300+345

d=1 645

v:1 645-345=1 300

4 500+e=6 800

e=6 800-4 500

e=2 300

v:4 500+2 300=6 800

325+f=330

f=330-325

f=5

v:325+5=330

6 500-g=2 300

g=6 500-2 300

g=4 200

v:6 500-4 200=2 300

8 794-h=4 326

h=8 794-4 326

h=4 468

v:8 794-4 468=4 326