Adding and Subtracting Decimals

Adding and Subtracting Decimals

Section 2.4

Multiple Choice

Before we review we need to remember, when adding or subtracting decimals you must...

• forget about the decimals.

• take out the decimals.

• line up the decimals.

• ignore the decimals.

Fill in the Blanks

Evaluate the expression...

23.557 - 17.601 + 5.216

Fill in the Blanks

16.5263 + 12.404 - 11.73

Open Ended

Why is it helpful to estimate the answer before adding or subtracting decimals?

Open Ended

Describe two real-life examples of when you would need to add and subtract decimals.

More Questions to Review

152.883 − 35.6247

14.549 − (8.131 + 3.7024)

25.92 − 18.478 + 8.164

Poll

How ready are you to add and subtract decimals on your quiz tomorrow?

• Very ready! I can do this on my own :)

• I feel okay, but I need more practice.

• Not awesome, I need help and more practice.