Question

Va rog dau coroana,toate ex

Answer 1

Răspuns:

$\large \bf (1)~~-2-(-3)+(4-7)-(3-2)=$

$\large \bf -2+3+(-3)-(1)=$

$\large \bf -2+3-3-1=\Large \boxed{\bf -3}$

$\it~~~$

$\large \bf (2)~~(-3+7)\cdot (-3-7)=$

$\large \bf 4\cdot (-10)=\Large\boxed{\bf -40}$

$\it~~~$

$\large \bf (3)~~(-5+6):(-1)-(-5-6)=$

$\large \bf~(-1):(-1)-(-11)=$

$\large \bf~ 1 + 11= \Large\boxed{\bf 12}$

$\it~~~$

$\large \bf (4)~~(-3+6-9):(-3+1)-(-2-1):(-3)=$

$\large \bf ~(-6):(-2)-(-3):(-3)=$

$\large \bf ~3-1=\Large\boxed{\bf 2}$

$\it~~$

$\large \bf (5)~~(-12-18-48):(-5-1)+(-18+12):(-2-1)=$

$\large \bf ~(-78):(-6)+(-6):(-3)=$

$\large \bf ~13+(-6):(-3)=$

$\large \bf ~13+2 = \Large\bf\boxed{\bf 15}$

$\it~~~$

$\large \bf (6)~~(-15-20+25):(-6+1)-(-7-3)=$

$\large \bf~(-10):(-5)-(-10)=$

$\large \bf~2-(-10)=$

$\large \bf~2+10=\Large\boxed{\bf 12}$

==pav38==