A. Verilmeyeni Bulma
a. (-13) + (-4)=+ (-13)
c. + (- 9) = (-9) + (-7)
e. (-11) +=-11
b. (+5) + [(-7) + (-3)] = [+(-7)] + (-3)
d. [(+2)+] + (-8) = (+2) + [(-1)+ (-8)]
f. (+25) +=0
Sagot :
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