Matematyka
MaTi25025
4

oblicz w pamięci : 6-14= 17-30= 15+(-7)= 4+(-9)= -12+8= -9+15= -9+20= -11+9= 4-(-15)= 6-(-9)= -8(-2)= -1-(-13)= -4-11= -10-16= -3+(-8)= -12+(-5)=

+0
(1) Odpowiedź
natalia2435098

6-14= -8 17-30= -13 15+(-7)= 15 - 7 = 8 4+(-9)= 4 - 9 = -5 -12+8= 4 -9+15= 6 -9+20= 11 -11+9= -2 4-(-15)= 4 + 15 = 19 6-(-9)= 6+9 = 15 -8(-2)=  -8 + 2 = -6 -1-(-13)= -1 + 13 = 12 -4-11= -15 -10-16= -26 -3+(-8)= -3 - 8 = -11 -12+(-5)= -12 - 5 = -17

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