D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true
Answer:
D
Step-by-step explanation:
Answer:
im pretty sure its 1/9
Step-by-step explanation:
1/3 x 1/6-1/3 x (-1/6)
1/18 + 1/18
Answer:
4
Step-by-step explanation:
I’m not sure about the estimates but the overall answers should be correct