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Addition and Subtraction with rational numbers - Coggle Diagram
Addition and Subtraction with rational numbers
Intergers
examples
Compare positive and negative numbers
Intergers can be used in real life like freezing point and things
Compare zero to negative numbers
Compare zero to positive numbers
Intergers come in three types Negative,positive
Number line addition
What process can you use to solve addition problems on a number line?
we can add from going right if its addition and we go to the left for subtraction
Absolute value
Addition:
Number line
First number is the start point
The operation determines direction (addition goes right)
Sign of the second number
Positive, go the direction of the operation
Negative, go the opposite direction of the operation
Like signs
Steps
Add the values
Keep the sign of the values
Addition steps
Different signs
Steps
Subtract the absolute values of the two values
Take the sign of the number that has the larger absolute value or further away from zero.
Number line
Steps
The first number is the starting point
The operation determines the direction (addition goes right)
Sign of the second number
Positive, go the direction of the operation
Negative, go the opposite direction of the operation
steps
Step 1: location the first value
Step 2: subtraction tells us to go to the left
Step 3: look at the sign of the second number:
Positive, continue with going to the left
Negative, go to the right, a double negative creates a positive
Algorithm
To convert to a subtraction problem to an addition problem you are going to need to change signs and change ur positives and negatives
Different signs
Steps
Subtract the absolute values of the two values
Take the sign of the number that has the larger absolute value or further away from zero.
Number line
First number is starting point
Operation determines direction (addition goes right)
Sign of the second number
Positive, go the direction of the operatio
Negative, go the opposite direction of the operation