Using Part-Part-Whole in Addition & Subtraction
Mandy makes 10 granola bars.
Aida makes 12 granola bars.
How many granola bars do they have altogether?
Make a bar model
10+12=22
The art teacher has 138 markers in a box.
She adds 55 markers to the box.
How many markers does she have in all?
Draw a bar model.
138+55=193
The length of pole A is 36 feet.
Pole B is 9 feet shorter than Pole A.
How long is Pole B?
Draw a bar model.
36-9=27
Tara and Jason collect stamps.
Tara has 165 stamps.
She has 48 more stamps than Jason.
How many stamps do they have altogether?
a. 165-48=117
b. 117+165=282
65+92=?
157
Will buys 24 eggs.
He breaks 7 eggs.
How many eggs does he have left?
Draw a bar model.
24-7=17
There are 88 people in a movie theater.
127 more people come into the theater.
How many people are in the theater now?
Draw a bar model.
88+127=215
Lucy uses 64 inches of ribbon.
She uses 37 inches less than Wendy.
How many inches of ribbon does Wendy use?
Draw a bar model.
64-37=27
An electronics store has 750 computers and television sets.
429 are computers.
The store sells 86 television sets.
How many television sets are not sold?
a. 750-429=321
b. 321-86=235
123-48=?
75
Kevin scores 78 points in the first game he bowls.
He scores 85 points in the second game.
How many points does Kevin score for both games?
Draw a bar model.
78+85=163
Adams Elementary School enrolled 785 children in September.
During the year, 156 children left the school.
How many children were enrolled at the end of the year?
Draw a bar model.
785-156=629
Carlos sells 478 tickets for the school fair.
Marissa sells 129 more tickets than Carlos.
How many tickets does Marissa sell?
Draw a bar model.
478+129=607
Pam uses 328 seashells in a craft project.
Sharon uses 85 more seashells than Pam for her project.
How many seashells do they use altogether?
a. 328+85=413
b. 413+328=741
583+309=?
892
Mr. Miller’s toy store has 102 stuffed animals.
He sells 76 of them.
How many stuffed animals are there now?
Draw a bar model.
102-76=26
Lee has 528 United States and Singapore stamps?
He has 249 United States stamps.
How many Singapore stamps does he have?
Draw a bar model.
528-249=279
A red box has 326 pencils.
The red box has 78 fewer pencils than the blue box.
How many pencils are in the blue box?
Draw a bar model.
326+78=404
Tom has 275 comic books in his collection.
Chris sells 82 comic books to Tom.
Then Chris has 148 comic books left.
How many more comic books does Tom have then Chris now?
a. 275+82=357
b. 357-148=209
731-294=?
437
The library has 500 books.
248 books are checked out.
How many books does the library have now?
Draw a bar model.
500-248=252
Jordan and Ling have 472 trading cards.
Ling has 178 trading cards.
How many trading cards does Jordan have?
Draw a bar model.
472-178=294
Julian drives 259 miles in one day.
He drives 109 more miles than Larry.
How many miles does Larry drive?
259-109=150
The pet store has 420 goldfish for sale.
It has 88 more guppies than goldfish.
Tomorrow it will get 55 more guppies.
How many guppies will the pet store have then?
a. 420+88=508
b. 508+55=563
973+284=?
1,257