Answer:
8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent.
Step-by-step explanation:
Solve addition and subtraction word problems, and add and subtract within 10.
Answer:

Step-by-step explanation:
6561 = 3×3×3×3×3×3×3×3= 3^8
You have to add the square root then do the division 54 is the answer