Sign Rules
Keep the same sign and just add the numbers.
What is adding same signs?
The word is means this in an equation.
What is equals?
x + 7 = 17
What is x = 10?
=
What is equals?
Two more than a number is greater than 18.
What is x + 2 > 18?
The answer will always be positive.
What is when multiplying or dividing same sign?.
More than means to use this operation.
What is addition?
x - 5 = 8
What is x = 13?
>
What is greater than?
A number less 4 is less than or equal to 24.
What is x - 4 < 24?
_
Keep, Change, Change is used when changing this operation to addition.
What is subtraction?
Find the difference means to use this operation.
What is subtraction?
2x = 12
What is x = 6?
<
What is less than?
Twice a number is less than 50.
What is 2x < 50?
The answer will always be negative.
What is multiplying or dividing different signs?
Find the quotient of two numbers means to use this operation.
What is division?
4 + x = 23
What is x = 19?
>
_
What is greater than or equal to?
The quotient of 18 and a number is less than or equal to 3.
What is 18
__ < 3?
X _
Subtract the smaller number from the larger number and then keep the sign of the larger number.
What is when adding different signs?
Twice a number means to use this operation.
What is multiplication?
x
_ = 5
3
What is x = 15?
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_
What is less than or equal to?
The sum of a number and a number plus 4 is greater than 20.
What is x + (x + 4) > 20?