Question

Calculeaza in doua moduri:
a.(36+18):3=
b.(2700+900-450):90=
c.(150-60-30):15=

AJUTOR!!!!
DAU COROANA SI 40 DE PINCTE!!!!!!!!!

Answer 1

a).  (36+18):3=54:3=18
(36:3)+(18:3)=12+6=18

b). (2700+900-450):90=(3600-450):90=3150:90=35
(2700:90)+(900:90)-(450:90)=30+10-5=40-5=35

c). (150-60-30):15=(90-30):15=60:15=4
(150:15)-(60:15)-(30:15)= 10-4-2=6-2=4

Answer 2

a. (36+18):3 = 54:3 = 18
(36+18):3 = 36:3+18:3 = 12+6 = 18

b. (2700+900-450):90 = (3600-450):90 = 3150:90 = 35
(2700+900-450):90 = 2700:90+900:90-450:90 = 30+10-5 = 40-5 = 35

c. (150-60-30):15 = 60:15 = 4
(150-60-30):15 = 150:15-60:15-30:15 = 10-4-2 = 6-2 = 4

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