Question

4. Efectuati:
a) (7503: 61 +877): 500+53. 11;
b) 207.9-(192+32): 74+2 296 : 41;
c) 5.230 - 7.(512:32 +2 +4687
d) [493 : 17​

Answer 1

Răspuns: Rezolvarea mai jos + enuntul complet

Explicație pas cu pas:

$\bf a)~ (7503: 61 + 877): 500 + 53\cdot 11=$

$\bf (123 + 877): 500+ 53\cdot11=$

$\bf 1000: 500+ 53\cdot11=$

$\bf 2 +53\cdot11=$

$\bf 2 +583=$

$\blue{\underline{~\bf 585~}}$

$\bf b)~ 207\cdot9-(19^2-3^2): 74 +2296: 41=$

$\bf 1863-(361+9): 74 +2296: 41=$

$\bf 1863-370: 74 +56=$

$\bf 1863-5 +56=$

$\purple{\underline{~\bf 1914~}}$

$\bf c)~ 5\cdot230 - 7\cdot (512:32 + 2^2) + 4687: 43=$

$\bf 1150-7\cdot (16 + 4) + 109=$

$\bf 1150-7\cdot 20 + 109=$

$\bf 1150-140 + 109=$

$\bf 1010 + 109=$

$\pink{\underline{~\bf 1119~}}$

$\bf d)~ [493: 17- (128: 2^3+ 224:8):22]: 27-1=$

$\bf [493: 17- (128: 8+ 28):22]: 27-1=$

$\bf [29- (16+ 28):22]: 27-1=$

$\bf (29- 44:22): 27-1=$

$\bf (29- 2): 27-1=$

$\bf 27: 27-1=$

$\bf 1-1=$

$\red{\underline{~\bf 0~}}$

$==pav38==$