Adding Mixed Numbers
3 1/4 + 2 2/4
5 3/4
4 2/5-3 1/5
1 1/5
What does the numerator tell us?
The part of the whole
When would I use a part-whole model?
Subtracting mixed number problem
Harper had a 3 1/2 foot tall pet hamster, and Molly had a 6 3/4 foot tall turtle. How much taller is Molly's turtle?
3 1/4 foot taller
5 1/3 + 2 4/6
8
4 1/2 - 2 5/6
1 4/6
What does the denominator tell us?
What the whole is partitioned into
What are 3 models that we have learned or used this unit?
part-whole models, tree diagrams, number lines, bar models
Kane decided to enter a pie eating contest. Kane ate 2 3/5 of apple pie and 6 7/10 of pumpkin pie. How much pie did he eat in all?
9 3/10
1 3/5 + 3 9/10
5 5/10
9 1/4 - 8 7/12
8/12
What are the steps for adding mixed numbers?
Must say in order (at least 6 steps)
What are two ways that I can make a common denominator?
Bar model or Multiplicatoin
Jaxon went on a wild goose chase, looking for a new pet goose. He only found 6 1/2 rocks though, some purple and some brown. 3 2/3 of the rocks are brown, how many are purple?
2 5/6
2 1/2 + 3 1/5
5 7/10
6 1/3 - 5 3/5
11/15
What are the steps for subtracting mixed numbers?
must say in order ( at least 8 steps)
Write and solve an equation using the part-whole method
varies
Aniyah and Silas have a bakery that sells lots of different pastries. Morgan bough 4 1/2 strawberry donuts and Jacob only wanted 7/8 of a croissant. How much did they buy all together?
5 3/8
6 1/6 + 2 5/9
8 26/36
12 1/7 - 8 2/3
3 10/21
WHY can I not add different denominators? ( I am going to need an explanation and a VISUAL representation)
varies
There are 4 steps to a part whole problems, what are they?
1. Make a model for the part
2. Count up to your whole
3. Use a tree diagram to solve the problem
4. Check to make sure your part whole model and tree diagram have matching answers
Miss Krabel decided to throw a party. She asked all of her class to bring exactly 2/3 of a cake. There are 19 people in her class. How much cake did the class have all together?
12 2/3