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Expanded Form
Word Form/Standard Form
Comparing/Ordering
Vocabulary
Place Value
100
What is 327.1 in expanded form?
300+20+7+0.1
100
Write 4621 in word form.
four thousand six hundred twenty one
100
Fill in the space with the appropriate symbol (<,>,=): 186,435,002 186,435,002.00
186,435,002 = 186,435,002.00
100
decimals that name the same amount
equivalent decimals
100
In the number 465,765,986, the number seven is in what place value?
hundred thousand
200
What is 3278.05 in expanded form?
3000+200+70+8+0.05
200
Tell me how you would write 726.21 in word form. What word represents the decimal point?
Seven hundred twenty six and twenty one hundredths; the word that represents the decimal point is "and"
200
Fill in the space with the appropriate symbol (<,>,=): 8.325 8.32504
8.325 < 8.32504
200
the numbers 0,1,2,3,4,5 and so on.
Whole numbers
200
Give me an example of a number that has a 6 in the ten thousandths place.
(answer varies) 45.2316
300
What is 30201.0201 in expanded form?
30000+200+1+0.02+0.0001
300
Explain what standard form is and give me a reason why we would use it.
Standard form is the common way of writing a number with commas separating groups of three digits starting from the right.
300
Order the following decimals from greatest to least: 8.7; 8.62;8.324; 8.99
8.99, 8.7, 8.62, 8.324
300
The number a digit represents, which is determined by the position of the digit.
Value
300
What place value does the x represent: --.---x-
Ten-Thousandths
400
Tell us what expanded for is.
Expanded form is a way to write a number that shows the place value of each digit.
400
For the standard form of three billion, twenty nine million, seven, Danielle wrote 3,290,000,070. What error did she make? What is the correct standard form of the number?
Danielle wrote 290 million instead of 29 million as well as seventy instead of 7. The correct way to write this number is 3,029,000,007
400
Order the following decimals from least to greatest: 0.253; 0.25;0.225;0.26
0.225, 0.25, 0.253, 0.26
400
The position of a digit in a number that is used to determine the value of a digit.
Place Value
400
Why are the two threes in the following number different? 3,000.0031
One 3 is in the thousands place and the other 3 is in the thousandths place.
500
Explain how I can convert a number written in standard form to a number written in expanded form.
answer varies.
500
Is seven hundred sixty seven million one hundred twenty one thousand and seven tenths written in standard form as 767,121,007? Why or why not?
This is incorrect because the seven should not be in the ones place value but it should be in the tenths place value. It should be written as 767,121,000.7
500
Describe how you would order decimals from least to greatest.
First you would line up the decimal points. Then you would work from left to right and compare the same place values. Once you find different digits in the same place value, then the lower digit is part of the smaller number.
500
A group of three numbers
Period
500
When comparing decimals, why is it important that we line up the decimal points?
By lining up the decimals points, we are able to compare the same place values much easier.