Algebra 1 : Integer Operations
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Example Questions
Example Question #61 : Real Numbers
Subtract fifty four from thirty one.
Write an expression to express this question.
This can be solved by taking a 
Simplify the terms inside the parentheses.
The answer is:
Example Question #62 : Real Numbers
Subtract 154 from 233.
Rewrite this as an expression.
Borrow a one from the tens digit of 233 and subtract the ones digits.
The tens digit of 233 is a two.
Borrow a one from the hundreds digit of 233 and subtract the tens digits.
The hundreds digit of 233 is now a one.
Subtract the hundreds digits.
Combine the digits from the calculations:
The answer is:
Example Question #63 : Real Numbers
Subtract:
Borrow a one from the tens digit of 
Subtract the ones digits.
Borrow a one from the hundreds digit of 
Remember that the tens place of 
Subtract the tens digits.
Subtract the hundreds digits. The hundreds digit of 
Combine the digits.
The answer is:
Example Question #64 : Real Numbers
Subtract:
Borrow a one from the tens place of 78.
Subtract the ones digits.
Since we borrowed a one, the tens digit of 78 becomes a six.
Subtract the tens digits.
Combine the numbers.
The answer is:
Example Question #65 : Real Numbers
Subtract the two numbers:
Borrow a one from the tens digit of 98, since we cannot subtract the ones digits.
The tens digit of 98 becomes an eight.
Subtract the ones digits.
Subtract the tens digits.
Combine the digits.
The answer is:
Example Question #66 : Real Numbers
Subtract the integers:
Subtract the ones digits.
Subtract the tens digits.
Subtract the hundreds digits. The hundreds digit for 52 is zero.
Combine the numbers from the previous calculations.
The answer is:
Example Question #61 : Integer Operations
Subtract the following integers:
Subtract the ones digits. There is no need to borrow a one from the tens digit.
Borrow a one from the hundreds digit to subtract the tens digits.
Subtract the tens digits.
Combine the numbers.
The answer is:
Example Question #68 : Real Numbers
Subtract the numbers:
Subtract the ones digits.
Subtract the tens digits.
Borrow a one from the thousands place in order to subtract the hundreds digits. The thousands digit will become zero.
Combine the numbers in order from hundreds place, tens place, and ones place.
The answer is:
Example Question #69 : Real Numbers
Subtract the numbers:
Borrow a one from the tens place to subtract the ones digits. The tens digit of 1093 is now eight.
We cannot borrow a one from the hundreds place to subtract eight with nine, so we will need to borrow a one from the thousands place instead. The thousands place of 1093 is now zero, and the hundreds place becomes a nine.
Subtract the tens places.
Subtract the hundreds places.
Combine the hundreds, tens, and ones digits.
The answer is:
Example Question #1 : How To Multiply Integers
Evaluate 5x + 3y when x = 7 and y = 9.
–62
62
–66
8
66
62
Plug in 7 for x and 5 for y, giving you 5(7) + 3(9). This is equal to 35 + 27, which equals 62.
5x + 3y
5(7) + 3(9)
35 + 27 = 62
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