The square root of a number is the number which, when squared - multiplied by itself - yields that number as the product. The square root of a fraction whose numerator and denominator are both perfect squares can be found as follows:

Divide 3 by 7:

The number falls between 0.42 and 0.43.

The principal square root of a number is the number that, when multiplied by itself, yields that number. To determine which of the four statements is true, we find the squares of the numbers 8.4, 8.5, 8.6, 8.7, and 8.8. If we do this, we find that

,

so

.

If each of 0.2, 0.3, 0.4, 0.5, and 0.6 is subtracted from 8, the resulting differences are 7.8, 7.7, 7.6, 7.5, and 7.4, respectively. Therefore, we ask which of these two numbers  falls between and work from there. 

, the square root of 58, is the number which, when squared - multiplied by itself - yields the product 58. If each of the numbers are squared, we see that

, or, equivalently,

.

By order of operations, multiplication takes precedence over addition, and each is worked right to left. Keeping this in mind:

The greatest of the four is .

Since you are multiplying  by a quarter, you can take each part separately.  

A quarter of  is .  

A quarter of  is .

When you put them back together you get .

 and  are both positive, since the product or quotient of two negative numbers is always positive.

. 

 is the only negative number among the four choices, this is the least of the four.

Twenty-four chicken strips comprise  regular orders, which together cost . The price that would ensure a savings of 15% would be  of this, which is 

.

The price charged for the Basket should be no higher than this. However, the manager wants the price to be a whole dollar amount, so we round down to $20.

.

Multiply, ignoring the decimal points:

Since, between the factors, a total of two digits are to the right of the decimal points, position the decimal point in the product so that two digits are at right of its decimal point. This is 65.34, which falls between 65 and 66.

The tenth's place is the position one unit to the right of the decimal point.  In this case, that is the 7.

After identifying the position, we need to determine if this number remains 7 or if we need to round it up to 8.  If the number to the right of the tenth's place is 4 or lower, then our number will remain 7.  If it is 5 or greater, then we will round the 7 up to 8.

In this case, the number is indeed 5, so our tenth's place becomes 8.  All numbers to the left of the tenth's place will remain the same.

To subtract decimals you place the first decimal over the top of the other aligned by the decimal point. If there are no numbers after a tens, hundredths, or thousandths place or further to the right of the decimal just add a zero in the required areas.

For example  becomes 

Then go through each place and subtract the top number by the bottom number. Subtract the numbers in each place like you would any number.

The example we are working with will look like this 

The answer after subtraction is