Transcript Adding Rational Numbers

Adding Rational Numbers
Warm Up
Use the table. Write each ratio as a fraction and
then as a decimal.
1. Basketball to Football
2. Hockey to Lacrosse
3. Polo to Football
4. Lacrosse to Rugby
5. Football to Soccer
Malachi hikes for 2.5 miles and stops for lunch.
Then he hikes for 1.5 more miles. How many
miles did he hike altogether?
𝟑
𝟒
Kyle pours out liter of liquid from a beaker.
𝟏
𝟐
Then he pours out another liter of liquid.
What is the overall change in the amount of
liquid in the beaker?
Adding on a Number Line
During the day, the temperature increases by
4.5 degrees. At night, the temperature
decreases by 7.5 degrees. What is the overall
change in temperature?
Ernesto writes a check for $2.50. Then he deposits
$6 in his checking account. What is the overall
increase or decrease in the account balance?
-3 + 2
2 + (-3)
What do you notice about the sums?
A football team loses 3.5 yards on their first play.
On the next play, they gain 3.5 yards. What is
the overall increase or decrease in yards?
1
1
2 + −2
=
2
2
−4.5 + 4.5 =
3
4
Kendrick adds cup of chicken
3
4
stock to a pot. Then he takes cup
of stock out of the pot. What is
the overall increase or decrease in
the amount of chicken stock in the
pot?
Tina spent $5.25 on craft supplies to
make friendship bracelets. She made
$6.75 and spent an additional $3.25
for supplies on Monday. On Tuesday,
she sold an additional $4.50 worth of
bracelets. What was Tina’s overall
profit or loss?
Find Each Sum