2-min Fluency Warm-up — Mental math.
150 − 100 =
320 + 100 =
400 − 100 =
60 + 10 =
Solve each using columns.
Number Talk — Explain WITHOUT calculating.
A: 456 + 234
B: 456 + 244
Which is bigger?
A: 700 − 300
B: 700 − 200
Which is bigger?
Decide if you add or subtract.
The farmer grew 425 carrots and 318 tomatoes. How many vegetables did the farmer grow?
Draw or write your thinking:
vegetables
The warehouse had 832 boxes. They shipped 367 boxes today. How many boxes are left?
Draw or write your thinking:
boxes
Find the missing number.
+ 234 = 578
How did you figure it out?
645 − = 312
How did you figure it out?
Create Your Own! Write a word problem that uses 3-digit subtraction. Then solve it.
My problem:
My answer: