Copyright © Swun Math Grade 6 Unit 5 Lesson 7-8a Re-Engage
Name: ____________________________
Date: ______________________________
Re-Engage
Unit 5 Lessons 7-9a: Generate and Solve Addition
and Subtraction Equations - Scale Model
Model
1. Orlando had 12 lollipops. He gave some
to his sister and now he has 7 lollipops.
How many did he give to his sister?
Orlando gave his sister ______ lollipops.
2. Rico had 9 marbles in a bag. His brother
gave him some more marbles and now
he has 16 marbles. How many marbles
did his brother give him?
Rico’s brother gave him ______ marbles.
Structured Guided Practice
Directions: Use the scale model to solve.
Steps:
1. Read and understand the
problem.
2.
Identify the unknow
n
value and key
words.
3.
Write
the equation.
4.
Use the scale model
to
solve.
Kevin had 8 pennies. His mom gave him some more
pennies and now he has 12 pennies. How many pennies
did his mom give him?
Kevin’s mom gave him ______ more pennies.
unknown:
p
= number of pennies
Mom gave Kevin
equation:
8 +
p
= 12
solution:
p
= 4
8 +
p
12
=
p
p
+ 8 12
=
p
4
=
unknown:
equation:
solution:
=
unknown:
equation:
solution: