lap90
lap90
19-09-2015
Mathematics
contestada
how to solve 7+(-15)+12
Respuesta :
RedRicin
RedRicin
19-09-2015
7+(-15)+12
Adding a negative number is the same as simply subtracting it.
7-15+12
7 - 15 = negative 8 (use a number line)
-8 + 12 =
4
(use a number line)
Answer Link
Exvited
Exvited
19-09-2015
7 + (-15) + 12
First,
simplify brackets. / Your problem should look like: 7 - 15 + 12.
Second,
simplify. / Your problem should look like: 4.
Answer:
4
Answer Link
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