Place Value Relationships
Multiplying and Dividing by Powers of 10
Exponential and Scientific Notation
Comparing and Rounding Decimals
Adding and Subtracting Decimals
100
How many times greater is the value of the digit 2 in 234,999 than the value of the 2 in 542,000?
100 times greater since it is 2 place values to the left.
100
23 x 1,000 =
23,000
100
10^5 =
100,000
100
2.1 ____ 2.099
2.1 > 2.099
100
1.7 + 0.38 =
2.08
200
In the number 234,488... The 4 to the right is ___ the value of the 4 on the left.
1/10
200
5.67 x 100 =
567
200
6 x 10^3 =
6,000
200
3.09 ___ 3.111
3.09 < 3.111
200
3.65 + 1.52 =
5.17
300
You are really hungry and want as much pizza as you can get. Ella says she will give you 6 tenths of her pizza. Jayden says she will give you 6 hundredths of her pizza, which she says is more. Who is offering you more pizza? Draw a picture to prove your answer.
Ella Show your teacher your drawing.
300
234.5 / 100 =
2.345
300
Write this number in standard form. 6.123 x 10^5 =
612,300
300
Put these decimals in order from greatest to least... 3.5, 3.05, 4.29, 7.0, 4.9
7.0, 4.9, 4.29, 3.5, 3.05
300
5.9 - 5.1 =
0.8
400
Joe says 1 one, 2 tenths, and 3 hundredths is the same as 123 hundredths. Is he right? Draw a picture to prove your answer.
Yes, he's right. Show your teacher your answer.
400
34.56 x 10^3 =
34,560
400
Write this number in scientific notation: 7,320,000
7.32 x 10^6
400
Round this number to the nearest tenth. 43.234
43.2
400
9.8 - 2.12 =
7.68
500
Write this number in expanded notation using base ten. 23,017.07
(2 x 10,000) + (3 x 1,000) + (1 x 10) + (7 x 1) + ( 7 x 0.01)
500
34.567 / 10^2 =
0.34567
500
What is a shorter way to write 14,500,000?
1.45 x 10^7
500
Round this number to the nearest ten, tenth, and hundredth. 298.1397
ten: 300 tenth: 298.1 hundredth: 298.14
500
508.1 - 37.61 =
470.49