Question

Add or subtract.

i. 16 + 0 = 16
ii. 0 - 7 = 0 + (-7) = -7
iii. -4 + 0 = -4
iv. 0 + d = d
v. What pattern do you notice in parts (i) through (iv)?

Answer 1

is that you emme!

ok i will give a clue