Number Sense
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TACHS Math › Number Sense
Solve:
Explanation
The lines on either side of the negative integer represent that we need to find its absolute value. The absolute value of a number is its real distance from zero on a number line; therefore, we need to calculate how many spaces the number is tot he left of zero on a number line. This number is a distance from zero and will not be negative. All absolute values are positive.
Therefore, the absolute value—or distance from zero—is the following:
Solve:
Explanation
The lines on either side of the negative integer represent that we need to find its absolute value. The absolute value of a number is its real distance from zero on a number line; therefore, we need to calculate how many spaces the number is tot he left of zero on a number line. This number is a distance from zero and will not be negative. All absolute values are positive.
Therefore, the absolute value—or distance from zero—is the following:
What is the least common multiple of 
Explanation
Start by listing out multiples of 
Next, list out multiples of 
Now, find the smallest number that is found in both lists. In this case, the least common multiple must be 
What is the least common multiple of
Explanation
Start by listing out multiples of
Next, list out multiples of
Now, find the smallest number that is found in both lists. In this case, the least common multiple must be
What is the greatest common factor of 
Explanation
Start by listing out the factors of 
Next, list out the factors of 
Now, find the largest factor that the two numbers share. In this case, the greatest common factor is 
What is the greatest common factor of
Explanation
Start by listing out the factors of
Next, list out the factors of
Now, find the largest factor that the two numbers share. In this case, the greatest common factor is
Which of the following is equivalent to 
Explanation
Recall that when a number is raised to an exponent, that means we will need to multiply the number the number of times that is equal to the exponent.
Thus, with 
Which of the following is equivalent to
Explanation
Recall that when a number is raised to an exponent, that means we will need to multiply the number the number of times that is equal to the exponent.
Thus, with
Examine the decimal
What is the place value of the position occupied by the "6"?
Ten Thousandths
Tenths
Thousandths
Hundredths
Explanation
After the decimal point, the place values of the digits are, in order:
The "6" is in the fourth place after the decimal point, so its place value is one ten-thousandth.
Examine the decimal
What is the place value of the position occupied by the "6"?
Ten Thousandths
Tenths
Thousandths
Hundredths
Explanation
After the decimal point, the place values of the digits are, in order:
The "6" is in the fourth place after the decimal point, so its place value is one ten-thousandth.