Question

1. 13+(-2)= 2.-4+(-8)= 3. 5+(-9)= 4.-12+(-5)= 5. 13-(-2) 6.-4-(-8) 7. 5-(-9) 8. -12-(-5) 9. 43+(-12) 10. -59-(-13) 11. -5+(-79) 12. -11-51​

Answer 1

Ответ:

$1)13 + ( - 2) = 13 - 2 = 11 \\ 2) - 4 + ( - 8) = - 4 - 8 = - 12 \\ 3)5 + ( - 9) = 5 - 9 = - 4 \\ 4) - 12 + ( - 5) = - 12 - 5 = - 17 \\ 5)13 - ( - 2) = 13 + 2 = 15 \\ 6) - 4 - ( - 8) = - 4 + 8 = 4 \\ 7)5 - ( - 9) = = 5 + 9 = 14 \\ 8) - 12 - ( - 5) = - 12 + 5 = - 7 \\ 9)43 + ( - 12) = 43 - 12 = 31$

$10) - 59 - ( - 13) = - 59 + 13 = - 46 \\ 11) - 5 + ( - 79) = - 5 - 79 = - 84 \\ 12) - 11 - 51 = - 62$