Do Now!
How many sides does a pentagon
have?
What is the value of the 3 in this
number? 326,619
How many seconds are in a minute?
Finish the pattern…
0,3,6,9,12,__,__,__,__,
Place Value
Written and expanded notation
Equal numbers
Vocabulary
< Less than
> more than
= equal to
Whole number- Number greater than 0
without decimals
Written Notation
Written notation is the number in words.
– 521 is five hundred twenty one
– 1,546 is one thousand five hundred fourty
six
– 5,176
– 865
– 25
Expanded form
Shows numbers in an extended addition
form
458 is 400+50+8
456,251 is
400,000+50,000+6,000+200+50+1
965
456,563,100
Comparing numbers
Greater and less than
125 and 145
122,456 and 122,457
Place Value with
Decimals
Decimal- Number smaller than one but
greater than 0.
Decimal Chart
Decimal
Decimals seem to go backwards when
going through the units.
At the end of each place value add the
ending – ths
What are the place values
152.456
1.01256
0.754695
.0023
.1
.5236
Place values
Given the number 0.145362
• What is in the thousandths place?
• Hundredths?
• Hundred thousandths?
• Tenths?
• Millionths?
• Ten thousandths?
Comparing numbers with
Decimals
When comparing numbers that have
decimals that are different, the bigger
the number is the smaller the value!!!
123.456 is greater than 123.457
You must look at each digit very closely
Lets practice
Written form of
– .120
– .4565
Lets practice
Expanded form of:
– .1254
– .4521
– .12
– .85630
Let’s practice
Compare the numbers below
1.2563____1.1253
0.25896___0.1
0.256___.8546
Final practice
List from least to greatest
5.123
5.2365
2.1459
.1524
0.12
.524
.8