Question

De la 711:9 va rog repede

Answer 1

Răspuns:

1. 711:9=79

324:5=64,8

955:3=318,3333333333

2. 75×19=1425

1425:5=285 (Adevarat)

624:2=312

624:3=208

312 > 208 (Fals)

(a+b+c):3=

Pai le iei cum vrei

a=20

b=21

c=22

(20+21+22):3=

63:3=21 (Adevarat)

3.(56:a+16):5+12=16

(56:a+16):5=16-12=4 (Luam mersul invers)

56:a+16=4×5=20

56:a=20-16=4

a=56:4=14

a=14

[(a+7):6-10]:4+5=25

Aici facem la fel

[(a+7):6-10]:4=25-5=20

Desfiintam paranteza patrata

(a+7):6-10=20×4=80

(a+7):6=80+10=90

Desfiintam paranteza rotunda

a+7=90×6=540

a=540-7=533

a=533