Problem 1:
John ran 5 laps of a 2-kilometer long track. Jake completed one lap of the track. How many kilometers did they run in all?
#### Step-by-Step Solution:
1.
Determine the distance John ran:
- John ran 5 laps.
- Each lap is 2 kilometers.
- Total distance John ran = \( 5 \times 2 = 10 \) kilometers.
2.
Determine the distance Jake ran:
- Jake ran 1 lap.
- Each lap is 2 kilometers.
- Total distance Jake ran = \( 1 \times 2 = 2 \) kilometers.
3.
Calculate the total distance both ran:
- Total distance = Distance John ran + Distance Jake ran
- Total distance = \( 10 + 2 = 12 \) kilometers.
#### Final Answer for Problem 1:
\[
\boxed{12}
\]
---
Problem 2:
Gia bought 6 groups of 2 balloons. She gave 2 groups of 3 balloons to her younger brother. How many balloons is she left with?
#### Step-by-Step Solution:
1.
Calculate the total number of balloons Gia initially bought:
- Gia bought 6 groups.
- Each group contains 2 balloons.
- Total balloons bought = \( 6 \times 2 = 12 \) balloons.
2.
Calculate the number of balloons Gia gave to her younger brother:
- Gia gave 2 groups.
- Each group contains 3 balloons.
- Total balloons given = \( 2 \times 3 = 6 \) balloons.
3.
Calculate the number of balloons Gia has left:
- Balloons left = Total balloons bought - Total balloons given
- Balloons left = \( 12 - 6 = 6 \) balloons.
#### Final Answer for Problem 2:
\[
\boxed{6}
\]
---
Summary of Answers:
1.
Problem 1: \(\boxed{12}\)
2.
Problem 2: \(\boxed{6}\)
Parent Tip: Review the logic above to help your child master the concept of 2 step word problems 3rd grade worksheet.
