Question

1. Fill in the blanks to complete the
following statements and mention the
property
a. (-12)+(-9) = _ + (-12)
b.-45 +_ = - 45
c. 28 + _ = 0
d. [112 + (-15)] +21 _ +[(-15) +21]
​

Answer 1

Answer:

(-12(-9)=(-9)+(-12)

-45+0=-45

28+0=0

[112+(-15)]+21 +112+[(-15)+21]