GED Math : Basic Operations
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Example Questions
Example Question #1 : Basic Operations
Identify the property of addition demonstrated by the following statement:
The identity property of addition
The commutative property of addition
The inverse property of addition
The associative property of addition
The associative property of addition
The statement shows that the sum of three numbers yields the same result regardless of the order in which they are added; this is a demonstration of the associative property of addition.
Example Question #2 : Basic Operations
Identify the property of addition demonstrated by the following statement:
The associative property of addition
The commutative property of addition
The inverse property of addition
The identity property of addition
The inverse property of addition
The statemet shows a number being added to its additive inverse to obtain a sum of 0; this is a demonstration of the inverse property of addition.
Example Question #3 : Basic Operations
Identify the property of addition demonstrated by the following statement:
The associative property of addition
The commutative property of addition
The identity property of addition
The inverse property of addition
The commutative property of addition
This statement shows that two numbers can be added in either order to achieve the same result; this is a demonstration of the commutative property of addition.
Example Question #1 : Addition And Subtraction
Forty-two friends are renting a party bus to the school prom. Rental of the party bus will cost $320 up front plus $18 per hour. The friends have the bus from 5:00 PM to 3:00 AM.
Each friend has agreed to chip in $9. One of the teachers at the high school, Mr. Smith, has offered to chip in the rest. If he does, how much will he pay?
The friends have the bus from 5:00 PM to 3:00 AM - this is
hours.
The cost of renting the bus will be
.
Forty-two friends paying $9 each will pay a total of
.
The teacher will pay the difference, or
.
Example Question #4 : Basic Operations
A plane takes off at Cheyenne Regional Airport, which has an elevation of 6,159 feet. It ascends 17,785 feet, then descends feet. Which expression gives the current elevation of the plane in feet?
The initial elevation of the plane is 6,159 feet in elevation. Ascent is an increase in elevation and descent is a decrease, so, to the elevation, in turn, add 17,785 feet, and subtract feet. This is
Example Question #5 : Basic Operations
An airplane takes off from Denver International Airport, which has elevation 5,431 feet. It is now flying at an elevation of feet. How many feet has the airplane ascended since takeoff?
We are looking for the difference between the current elevation of the plane and the initial elevation, so we subtract the initial elevation, 5,431, from current elevation, . This is .
Example Question #6 : Basic Operations
Identify the property of addition demonstrated by the following statement:
The associative property of addition
The identity property of addition
The commutative property of addition
The inverse property of addition
The identity property of addition
0 is called the additive identity in that it can be added to any number to yield that other number as the sum.
The identity property of addition is written mathematically as for any real .
Example Question #7 : Addition And Subtraction
Add the numbers:
Add the ones digits.
Add the tens digits. There is no carryover.
Add the hundreds digits.
Combine this number with the other digits.
The answer is:
Example Question #9 : Basic Operations
Add the numbers:
Add the ones digits.
Add the tens digits with the one as the carryover.
Combine this number with the ones digit of the first number.
The answer is:
Example Question #10 : Basic Operations
Add the numbers:
Add the ones digits.
Add the tens digits with the 1 as the carryover from the last calculation.
Combine this number with the ones digit of the first calculation.
The answer is:
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