Algebra II : Addition and Subtraction

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #31 : Elementary Operations

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The tens place of this number is one, which is the carryover.

Add the tens digits with the carryover.

The tens place of this number is also one, which is the carryover.

Add the hundreds digits with the carryover.

Add the thousands digits with the carryover.

Combine all the ones digits.

The answer is:  

Example Question #32 : Addition And Subtraction

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Add the tens digits with the carryover, which is the tens place.

Repeat the process for the hundreds digits.

Add the thousands digits with the carryover.

Combine this number with the ones digits of the numbers from the previous calculation.

The answer is:  

Example Question #33 : Addition And Subtraction

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The carryover is the tens digit, one.

Add the tens digit with the carryover.

The carryover is the tens digit, one.

Add the hundreds digit with the carryover.

Combine this number with the ones digits of the other two calculations.

The answer is:  

Example Question #34 : Addition And Subtraction

Add:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The carryover is the tens digit, .

Add the tens digits with the carryover.

The carryover is the tens digit, .

Add the hundreds digits with the carryover.  The two digit number will have zero as the hundreds place.

The tens place is the carryover.

Add the thousands places with the carryover.

The answer is:  

Example Question #35 : Addition And Subtraction

Add:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The carryover is 2.

Add the tens digits with the carryover.

The carryover is 2.

Add the hundreds digits with the carryover.

Combine this number with the ones digits from the previous calculation.

The answer is:  

Example Question #36 : Addition And Subtraction

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Write an expression to set up the problem.

Add the ones digits.

The carryover is tens place, which is two.

Add the tens digits.

The carryover is three.

Add the hundreds places with the carryover.  The two digit numbers will have zero as the hundreds places.

Combine the ones digits from each calculation.

The answer is:  

Example Question #37 : Addition And Subtraction

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The two is the carryover.

Add the tens digits with the carryover.

The one is the carryover.

Add the hundreds digits with the carryover.

Combine this number with the ones digits of the previous numbers.

The answer is:  

Example Question #38 : Addition And Subtraction

Subtract the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Subtract the first two numbers by initially focusing on the ones digits.

Borrow a one from the tens place of the first number to subtract the ones digits.  The tens place becomes a six.

Subtract the tens place.

Subtract the hundreds digits.  There's no need to borrow a one.

Combine the numbers from hundreds place to the ones place.

The answer is:  

Example Question #39 : Addition And Subtraction

Add the fractions:  

Possible Answers:

Correct answer:

Explanation:

In order to add the fractions, we will need to convert the first fraction with least common denominator of 25.

Multiply the top and bottom of this fraction by five.

Add the numerators.  The denominators will stay the same.

The answer is:  

Example Question #40 : Addition And Subtraction

Sum the numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The carry over is the tens digit of this number.

Add the tens digits with the carryover.

The carry over for the next calculation is the tens digit of this number.

Add the hundreds digits with the carry over.

Combine the numbers.

The answer is:  

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