Question

Prosze o rozwiaznie tych dzialan:

6 - [7 *(-2) - 2-5]=

-40:[-4 * (-3)-5*(7-3) =

[( 4-7)*(-3)-20] * (-2) =

-12-[3-2*(-14 +5)]=

[10 * (-2) - 7 * 3 ] * (-4) =

[-24 :(-6)-7-4] :(-12) =

[-15*(-5) +10 * (-3)]*9=

[3*(-9)+2*(-11)] * (-2) =

Answer 1

1) 6 - [7 *(-2) - 2-5]= 6- [-14-2-5]= 6-[-21]=6+21=27 2) -40:[-4 * (-3)-5*(7-3)] = -40:[12-5*(4)]= -40:[12-20]= -40:(-8)=5 3) [( 4-7)*(-3)-20] * (-2) = [-3*(-3)-20]*(-2)= [9*(-20)]*(-2)= -11*(-2)= 22 4) -12-[3-2*(-14 +5)]= -12-[3-2*(-9)]= -12- [3+18]= -12-21= -33 5) [10 * (-2) - 7 * 3 ] * (-4) = [-20-21]*(-4)= -41*(-4)= 164 6) [-24 :(-6)-7-4] :(-12) = [4-7-4]:(-12)= -7:(-12)= 7/12 7) [-15*(-5) +10 * (-3)]*9= [75-30]*9= 45*9= 405 8) [3*(-9)+2*(-11)] * (-2) = [-27-22]*(-2)= -49*(-2)= 98