Question

giúp mik với 1

đúng  mik tick .

 

Answer 1

a) (-4,3)+\(\left[\left(-7,5\right)+4,3\right]\)

=\(\left(-4,3\right)+4,3+\left(-7,5\right)\)

=-7,5

b)\(45,3+\left[-7,3+\left(-22\right)\right]\)

=\(45,3-7,3+\left(-22\right)\)

=38-22

=16

c)\(\left[\left(-11,7\right)+5,5\right]+\left[11,7+\left(-2,5\right)\right]\)

=\(\left[\left(-11,7\right)+11,7\right]+5,5-2,5\)

=\(3\)

Answer 2

d) \(\left[\left(-6,8\right)+\left(-56,9\right)\right]+\left|2,8+5,9\right|=\left(-6,8\right)+2,8+\left(-56,9\right)+5,9\)

\(=\left(-4\right)+\left(-51\right)\)

\(=-55\)