Malachi hikes for 2.5 miles & stops for lunch The he hikes for 1.5 more miles. How many miles does he hike all together?
4 miles
100
-8+5
-3
100
What is another word for additive inverse?
Opposite
100
What can we do to make the a problem easier when adding 3 or more rational numbers?
add like signs first
100
What is the answer in decimal form?
1 3/4 + (-0.84)
0.91
200
-3/4 + (-1/2)
-1 & 1/4
200
-2.5+6
3.5
200
Anything plus its additive inverse = ___?
0
200
-2.75 + (-3.5) + 5 =
-1
200
What is the answer in fractional form? Simplify as a mixed number.
(-2 1/2)+(-1.4)
-3 9/10
300
When adding rational numbers with the same sign, apply the rules for adding _______?
Intergers
300
Do you think -5+7 and 7 + (-5) have the same sum? Does it matter if the negative number is the first addend or the second addend?
The order of the addends does not matter when adding a positive or negative rational number. -5+7 and 5 + -7 both = 2
300
A football team loses 3.5 yards on their first play. Then gains 3.5 yards on their next play. What is the overall increase or decrease in yards?
-3.5 + 3.5 =0
300
-1.5 + 3.5 + 2=
4
400
3 + 1 & 1/2
4 & 1/2
400
During the day, the temperature increases by 4.5 degrees. At night it decreases by 7.5 degrees. Find the overall change in temperature.
4.5 + (-7.5) = -3
400
Kendrick adds 3/4 cup of chicken stock to a pot. he then drains 3/4 cup of that chicken stock from the pot. What is the overall in crease or decrease in the amount of chicken stock in the pot.
3/4-3/4 = 0
400
30 + 15 + (-25)=
45+ (-25) = 20
500
Explain how to determine whether to move right or left on the number line when adding rational numbers.
Move to the right if the number you are adding is positive and to the left if the number you are adding is negative.
500
To add rational numbers with different signs, find the difference of their _______? The use the sign of the rational number with the greater ______? (Hint: both blanks are the same)
Absolute Value
500
Ms. Diaz a 16oz water bottle. She drinks 7oz before school and 9oz during school how many ounces of water does she have left after school?
she drinks = negative
7+9 =16
16-16 = 0 oz
500
Tina spent $5.25 on craft supplies to make friendship bracelets. She made 3.75 on Monday. On Tuesday she sold an additional $4.50 worth of bracelets. What was Tina's overall profit or loss?