2-min Fluency Warm-up — Mental math. Go fast!
76 − 10 =
52 + 10 =
300 + 100 =
500 − 100 =
Estimate First! Round to tens, estimate, then solve.
48 + 36
Estimate (50 + 40):
Actual:
73 − 28
Estimate (70 − 30):
Actual:
55 + 39
Estimate (60 + 40):
Actual:
92 − 47
Estimate (90 − 50):
Actual:
Solve each. Think about whether to add or subtract.
37 + 45 =
82 − 36 =
29 + 56 =
68 − 29 =
Read carefully. Show your work.
A park had 54 benches. The city added 36 new benches. How many benches are in the park now?
Draw or write your thinking:
benches
The candy store had 78 chocolate bars. Customers bought 43 bars. How many bars are left?
Draw or write your thinking:
bars
Self-Check: How do you feel about mixed addition and subtraction?
Deciding Add or Subtract
😊 I got it! | 😐 Getting there | 😟 Need help
Using Different Strategies
😊 I got it! | 😐 Getting there | 😟 Need help
Solving Word Problems
😊 I got it! | 😐 Getting there | 😟 Need help
One thing I learned this week:
One thing I want to practice more:
My favorite strategy: