Question

1)
-10+(-7)
2) -7,14+(- 12,4)
3) -15,25+ (-255,05)
-12+(-5)
-4,6+(- 16,4)
-12,75 + (-388,02)

Answer 1

Відповідь:

Покрокове пояснення:

-10 + (-7) = -10 - 7 = -17

-7.14 + (-12.4) = -7.14 - 12.4 = -19.54

-15.25 + (-255.05) = -15.25 - 255.05 = -270.3

-12 + (-5) = -12 - 5 = -17

-4.6 + (-16.4) = -4.6 - 16.4 = -21

-12.75 + (-388.02) = -12.75 - 388.02 = -400.77

Answer 2

Ответ:

1)

$- 10 + ( - 7) = - 10 - \\ - 7 = - 17$

2)

$- 7.14 + ( - 12.4) = \\ = - 7.14 - 12.4 = - 19.54$

3)

$- 15.25 + ( - 255.05) = \\ = - 15.25 - 255.05 = \\ = - 270.3$

4)

$- 12 + ( - 5) = \\ = - 12 - 5 = - 17$

5)

$- 4.6 + ( - 16.4) = \\ = - 4.6 - 16.4 = \\ = - 21$

6)

$- 12.75 + ( - 388.02) = \\ = - 12.75 - 388.02 = \\ = - 400.77$