Question

ayuddddaaaaaaaa!!!!!!!
!!!

Answer 1

Respuestas:

3. 

a) 8 - (3 + 4)
= 8 - (7)
= 1
b) (12 - 6 + 4) × 2
= (10) × 2
= 20
c) (50 + 80 - 30) ÷ 5
= (100) ÷ 5
= 20
d) [(12 - 8) ÷ (7 - 5)]
= [(4) ÷ (2)]
= [2]
= 2
e) {[10 × (3 + 6) ÷ 3 × (9 - 4)] ÷ 2} × 20
= {[10 × (9) ÷ 3 (5)] ÷ 2} × 20
= {[90 ÷ 15] ÷ 2} × 20
= {[6] ÷ 2} × 20
= {3} × 20
= 60

4.

a) FALSO

b) VERDADERO

c) FALSO