2-min Fluency Warm-up — Mental math.
400 + 100 =
700 − 100 =
200 + 100 =
900 − 100 =
For each problem, write which strategy you will use: Draw, Work Backward, Pattern, or Guess and Check.
There are 85 chairs in the gym. 42 are set up. How many more need to be set up?
Strategy: ____
My work:
chairs
I had some pencils. I lost 15. Now I have 34. How many did I start with?
Strategy: ____
My work:
pencils
A snail climbs 3 inches each day. How far in 6 days?
Strategy: ____
My work:
inches
Solve using any strategy you like.
Two numbers add up to 150. One is 67. What is the other?
Show your work:
Answer:
Big Challenge
The school ordered 348 notebooks for the year. In September they used 87. In October they used 124. In November they used 63. How many notebooks are left?
Estimate First (round to friendly numbers): about left
Strategy: ____
Show your work:
Left: notebooks
Self-Check: How do you feel about problem solving strategies?
Draw a Picture
😊 I got it! | 😐 Getting there | 😟 Need help
Work Backward
😊 I got it! | 😐 Getting there | 😟 Need help
Look for a Pattern
😊 I got it! | 😐 Getting there | 😟 Need help
Guess and Check
😊 I got it! | 😐 Getting there | 😟 Need help
My favorite strategy:
One thing I learned this week:
One thing I want to practice more: