Unit 1: Whole Number Operations and Application

Addition,Subtraction,and PlaceValue

Academic Vocabulary Glossary

Lesson 1: Understanding Place Value

lesson 1 intro.PNG

Quizlet vocabulary practice
Place value identification practice - game
Try practicing the relationship between place values here; click "Learn with an example" if you need more help
expanded form review video
standard and word form review video

Lesson 2: Compare Whole Numbers

comparing practice - this link brings you to Khan Academy - it may ask you to log in. You may log in with your Google Account and give the practice a try. Feel free to watch any of the videos on comparing.

Lesson 3: Round Whole Numbers

We round to estimate and to make numbers easier to work with when you do not need an exact answer.
Watch this review video and practice questions. Use your school account to log in.
Here is an additional practice video.
Practice: Try the rounding game found on the funbrain site.
Challenge: Mystery Number: watch the video. Hit pause and take a guess. Then watch the rest of the video to see if you were correct. Is there more than one answer?

Lesson 4: Add Whole Numbers

<-----You will need to know how to use the standard algorithm to add and subtract mutlidigit numbers.

Need extra practice?

Grab scrap paper or a whiteboard.
Watch the video above and follow along with Sal. Press play and pause so you have enough time to set up each problem.
You will notice that he sets up the standard algorithm on the left and his thinking on the right. This thinking section goes away by the third example. Yours should too.
Challenge: 14.023 + 702 = ?

Lesson 5: Subtract Whole Numbers

Need extra practice?

Grab scrap paper or a whiteboard.
Watch the video above and follow along with Sal. Press play and pause so you have enough time to set up each problem. Then skip ahead to the final answer to see if you are correct. If you made a mistake, go back and watch the entire video.

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