(-4)+ (-2) =-6
-3 + (-8) =-11
(-10)+(-2)=-12
(-13) + (-7)=-20
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(-4)+ (-2) =-6
-3 + (-8) =-11
(-10)+(-2)=-12
(-13) + (-7)=-20
-3 + * =-11
* +(-2)=-12
* + (-7)=-20
* = -6 + 4
* = -2
-3 + * = -11
* = -11 + 3
* = -8
* +(-2)= -12
* = -12 + 2
* = -10
* + (-7) = -20
* = -20 + 7
* = -13
Ответы:
(-4) + (-2) = -6
-3 + (-8) = -11
-10 + (-2) = -12
-13 + (-7) = -20