Our main goal in this lesson is to study decimals that have THREE decimal digits — or thousandths. I show a visual illustration of thousandths using a square that is originally divided only 100 parts. Then we practice writing decimals with three digits as fractions and vice versa.
We will also learn how to write decimals with three decimal digits in expanded form, using a place value chart to help.
This lesson is meant for 5th or 6th grade math.
Fractions to decimals, and comparing decimals — up to 3 decimal digits (thousandths) — video lesson
Math Mammoth Decimals 2 — downloadable worktext
Math Mammoth TourConfused about the different options? Take a virtual email tour around Math Mammoth! You'll receive: An initial email to download your GIFT of over 400 free worksheets and sample pages from my books. Six other "TOURSTOP" emails that explain the important things and commonly asked questions concerning Math Mammoth curriculum. (Find out the differences between all these different-colored series!)This way, you'll have time to digest the information over one or two weeks, plus an opportunity to ask me personally about the curriculum. A monthly collection of math teaching tips & Math Mammoth updates (unsubscribe any time) We respect your email privacy.
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"Mini" Math Teaching CourseThis is a little "virtual" 2-week course, where you will receive emails on important topics on teaching math, including:
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Maria's Math TipsEnter your email to receive math teaching tips, resources, Math Mammoth news & sales, humor, and more! I tend to send out these tips about once monthly, near the beginning of the month, but occasionally you may hear from me twice per month (and sometimes less often). Peek at the previous tips here. You will also receive:
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