2-min Fluency Warm-up — Mental math.
81 − 10 =
43 + 10 =
600 − 100 =
100 + 100 =
Think about the situation. Draw if it helps.
On Saturday, the pet store sold 14 fish, 8 dogs, and 23 cats. How many pets did they sell that day?
Draw or write your thinking:
pets
The school collected 45 pounds of books, 25 pounds of clothes, and 30 pounds of toys for the drive. How many pounds were collected?
Draw or write your thinking:
pounds
Three friends ran a race. Sarah ran 38 meters, Jake ran 22 meters, and Lily ran 40 meters. How many meters did they run altogether?
Draw or write your thinking:
meters
Number Talk — Which sum is bigger? Explain WITHOUT calculating.
A: 15 + 25 + 30
B: 25 + 20 + 35
My thinking:
A: 40 + 30 + 20
B: 38 + 32 + 18
My thinking:
Solve each. Is the answer even or odd?
15 + 22 + 33 =
even or odd? ____
28 + 14 + 27 =
even or odd? ____
19 + 31 + 40 =
even or odd? ____
Create Your Own 3-Number Problem
Write a word problem that adds 3 numbers together. Make it about something YOU care about (your hobbies, pets, sports, etc.).
My answer: