Answer: 0.006
Step-by-step explanation: To compare decimals, begin by lining up the decimal points of each number. So here, we line up the decimal points of 0.004 and 0.006.
Next, compare the digits place by place starting at the left of each number.
So here, 0 and 0 are the same, 0 and 0 are the same, 0 and 0 are the same, but notice that 4 is less than 6.
This means that 0.004 < 0.006 or 0.006 > 0.004.
Therefore, the decimal 0.006 is bigger.