Hands-On
How are number lines helpful in estimation?
Goal:
Goal:
Practice!
Goal: Use a number line to estimate.
Let’s use benchmark numbers to estimate! You will need 2 pieces of round cereal and this number line .
Estimate 12 + 48. Put the cereal on the benchmark numbers. Click Show Me to check your work.
10 + 50 = 60
Estimate 77 + 31. Put the cereal on the benchmark numbers. Click Show Me to check your work.
30 + 80 = 110
Estimate 35 + 45. Put the cereal on the benchmark numbers. Click Show Me to check your work.
40 + 50 = 90
Use the worksheet below to practice estimating. When you are done, turn in your assignment to your teacher with your Weekly Written Work.
Estimate Sums