Unit 1 Review
9 + 7 =
9 + 7 = 16
26 + 51 =
26 + 51 = 77
There are 17 squirrels in a pine tree. There are 12 squirrels in an oak tree. How many fewer squirrels are in the oak tree than in the pine tree?
17 - 12 = 5
76 - 9 =
76 - 9 = 67
There are 83 people on the stairs. 47 of them are going up and some of them are coming down. Does the part, part, whole show a true version of the story?
| 47 | ? |
| 83 |
Yes, the part, part, whole shows that there are 83 people altogether and 47 of them are going up the stairs. The rest are coming down the stairs. That is the same as the story.
15 - 8 =
7
Show each step with base ten blocks.
58 + 2 = 60
60 + 10 = 70
70 + 3 = 73
2 + 10 + 3 = 15
white board review
There are 34 children in Mai’s classroom. There are 21 children in Noah’s classroom. How many more children are in Mai’s classroom than in Noah’s classroom?
34 - 21 = 13
35 + 57 =
35 + 57 = 92
There are some comic books on the shelf.
Mai puts 18 more comic books on the shelf.
Now there are 47 comic books on the shelf.
How many comic books were on the shelf?
Represent this word problem in part, part, whole.
| ? | 18 |
| 47 |
___ + 7 = 14
7
How many cubes altogether?
🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩
🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦
🟩 🟩
🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩
🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦
22 + 20 = 22
Jada added 3 different numbers between 1 and 9 and got 20.
9, 8, and 3
or
9, 7, and 4
or
8, 7, and 5
81 - 43 =
81 - 43 = 38
Lin read 25 pages of a book. Clare was reading the same book. Lin read 19 fewer pages of the book than Clare. Show this word problem in a part, part, whole.
| 25 | 19 |
| ? |
6 + ___ = 11
5
How many more cubes are there in train 1 than in train 2?
Train 1 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩
🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦
🟩 🟩
Train 2 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩 🟩
🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦 🟦
22 - 20 = 2
There are some frogs in the pond. Then 5 more frogs jump into the pond. Now there are 11 frogs in the pond. How many frogs were in the pond?
6 + 5 = 11
or
11 - 5 = 6
60 - 5 =
60 - 5 = 55
At a lake, there are 42 people swimming. Then 25 more people go to swim in the lake. How many people are swimming in the lake? Use part, Part, whole to show your thinking
| 42 | 25 |
| ? |
___ - 4 = 13
9
Use base ten representation to solve the problem, circle you answer in number form.
55 - 39
white board review
There are 83 people on the stairs. 47 of them are going up and some of them are coming down. Solve, show your thinking.
83 - 47 = 36
47 + 36 = 83
35 + ___ = 67
35 + 32 = 67
67 - 35 = 32
Write an equation for this part, part, whole.
| 28 | ? |
| 73 |
28 + ? = 73
or
73 - 28 = ?