-7 + (-4) =.....+(-7) ? (6+7 +.....=.....[7+(-5)]

Mapel : Matematika
Kelas : V SD
Bab : Bilangan Bulat

Pembahasan :
-7 + (-4)
= - 4 + (-7)
= -4 - 7
= -11

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(6 + 7 + ...)
= 6 + (7 + (-5))
= 6 + (2)
= 8