Question

4*. Calculați:
a)-7 +(-2).(-3);
c)-2.(+3) -9;
e) -10 -(-3) +(-7);
b) -10 + (-12): (+3);
d) (-24): (+8) - 7;
f) +28 : (-7)+7
sunt putin incurcate. dar asta nu conteaza. DAU COROANA! URGENTTTT! ❤
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Answer 1

a). -7 + ( -2 ) * ( - 3 ) = -9 * ( - 3 ) = 27.

b). -10 + ( -12 ) ÷ ( + 3 ) = -22 ÷ 3 = - 7, ( 3 )

c). - 2 * ( + 3 ) - 9 = - 6 - 9 = - 15

d). ( -24 ) ÷ ( + 8) - 7 = - 3 - 7 = - 10

e). - 10 - ( - 3 ) + ( - 7 ) = -7 + ( -7 ) = - 14

f). 28 : ( - 7 ) + 7 = - 4 + 7 = 3

Answer 2

a)-7+(-2)×(-3)= -1

-2×(-3)= 6

-7+6= -1

c)-2×(+3)-9= 15

-2×3= -6

(-6) - 9= 15

e) -10 -(-3) + (-7)= -14

-10-(-3)= -7

-8+(-7)= -14

b) -10+(-12):3= -6

-12÷3= -4

-10-(-4)= -6

d) (-24):8-7=11

-24:8= -4

-4-7= 11

f) 28:(-7)+7= 3

28:(-7)= -4

(-4)+7= 3