Question

afla numarul necunoscut prin incercari m•4=20 b•6=30 c•3=15​

Answer 1

Explicație pas cu pas:

●m×4=20

m=20:4

m=5

v:5×4=20

●b×6=30

b=30:6

b=5

v:5×6=30

●c×3=15

c=15:3

c=5

v:5×3=15

Answer 2

Răspuns:

m×4=20

m=20:4

m=5

verificare:5×4=20

b×6=30

b=30:6

b=5

verificare:5×6=30

c×3=15

c=15:3

c=5

verificare=5×3=15