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4th grade (Eureka Math/EngageNY)
Course: 4th grade (Eureka Math/EngageNY) > Unit 6
Lesson 2: Topic B: Tenths and hundredths- Rewriting fractions as decimals
- Visually converting tenths and hundredths
- Equivalent fractions with fraction models (denominators 10 & 100)
- Decomposing hundredths on number line
- Graphing hundredths from 0 to 0.1
- Identifying hundredths on a number line
- Plotting decimal numbers on a number line
- Decimals on the number line: hundredths 0-0.1
- Write fractions as decimals (denominators of 10 & 100)
- Writing fractions as decimals review
- Writing a number as a fraction and decimal
- Write decimals and fractions shown on grids
- Decimals on the number line: hundredths
- Write decimals and fractions shown on number lines
- Decimal place value with regrouping
- Decimal place value with regrouping
- Decompose fractions with denominators of 100
- Writing decimals and fractions greater than 1 shown on grids
- Write decimals and fractions greater than 1 shown on grids
- Writing decimals and fractions shown on number lines
- Write decimals and fractions greater than 1 shown on number lines
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Decomposing hundredths on number line
CCSS.Math:
Sal decomposes 26/100 into tenths and hundredths using a number line.
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- 0.1 is in tenths and 0.01 is in hundrethes(7 votes)
- why is the universe?(4 votes)
- How do you decompose from hundredths to tenths?(3 votes)
- I don't understand!(3 votes)
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- this look easy but it mabye id not(2 votes)
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pyton again long ppaarraaggrraapphh(1 vote) - Seems hard when looking at it.(1 vote)
Video transcript
- [Voiceover] So we
have an example exercise from our Khan Academy exercises. This is the decomposed fractions. with denominators of 100. Use the following number line
to complete the equation. The equation says 26-hundredths is equal to star-tenths plus six-hundredths. And they give us this number line and on this number line-- Let's see, this is zero right over here, zero-tenths, which is
the same thing as zero, and it goes all the way to 26-hundredths. Let's see if that makes sense. Well, you see between
zero-tenth and one-tenth, they split into 10 equal sections. One, two, three, four, five, six, seven, eight, nine, 10. So if you divide a tenth into tenths, each of these is going to be 100. A hundredth is one-tenth of a tenth. So that's 100, 200, 300, 400, five, six, seven, eight,
nine, 10-hundredths, 11, 12, 13, 14, 15, 16, 17, 18, 19 20-hundredths. 21, 22, 23, 24, 25, 26-hundredths. So that's exactly what they wrote there. So they say 26-hundredths, which is this thing right over here, is equal to star-tenths, which is really what's
being depicted in magenta, plus six-hundredths. The six-hundredths is this
green right over here. Adding the six-hundredths. Adding one, two, three,
four, five, six-hundredths. So what is this right over here? This magenta or this pink arrow? Well we could say that's 20-hundredths. If you count it that's 10, 20-hundredths. Or, you could see, well
that's just two-tenths. So 26-hundredths is the same thing as two-tenths plus six-hundredths. And it gets you right over there. So this right over here
is going to be two-tenths.