Addition
- 5 + 15
10
20 - (-10)
30
Complete the sentence:
If numbers have the same sign . . .
add and keep the sign
Complete the sentence:
Distance is always . . .
POSITIVE
-23 + (- 20)
-43
What is the sign of the answer for:
-15 - 23
negative
Complete the sentence:
If numbers have DIFFERENT signs . . .
Subtract and keep the sign of the number with biggest ABSOLUTE VALUE
When solving for distance, you get a negative answer, how can you make your answer positive
Find the absolute value.
What sign will the answer be?
10.25 + (-35.75)
the answer will be a negative number
18 2/5 - 16 1/5
2 1/5 or 2.2
Name the term:
A number and its opposite, their sum is zero
Additive inverse
Name a pair of numbers that are the same distance form zero.
3 1/4 + 8 1/2
11.75 or 11 3/4
Rewrite this expression as addition:
-23.75 - (17.8)
-23.75 + (-17.8)
Name the term:
Number of units between two numbers, found by finding the difference
Distance
What is the distance between - 15.25 and 15.50
30.75
What do I need to add to the sum so that it equals zero.
25 + (-15) + (-30)
20 because it is the opposite (additive inverse) of -20
Complete the sentence:
Subtraction can be rewritten as . . .
- adding the opposite
or
- adding the additive inverse
What rule will you use, describe it:
-98 + 103
I will subtract 103 and 23, my answer is positive because 103 has bigger absolute value.
Name how to fix this mistake:
The distance between -24 and - 50
|-24 - 50|
-74
Step 1:
|-24 - (-50)
|-24 + 50|
26