U1L1_-_Find_the_Value_of_a_Digit.pptx

© One Stop Teacher Shop © Mr. Elementary Math
The Simplified Math Curriculum™
FIND THE VALUE OF A DIGIT
LESSON 1
PLACE VALUE AND
ROUNDING
PLACE VALUE AND
ROUNDING

TODAY’S OBJECTIVE
Today, we will read numbers and
determine the value of different digits
in a number.

MATH JOURNALS
MATH JOURNALS
TAKE OUT YOUR

WATCH ME FIRST

Place Value Chart
THOUSANDS PERIOD ONES PERIOD
Hundred
Thousands
Ten Thousands Thousands Hundreds Tens Ones
READING NUMBERS & PLACE VALUE
Numbers are separated into groups of three digits using commas.
3 7 6 5
These groups are called PERIODS.
,
WATCH ME FIRST

Each PERIOD is made up of….
ones, tens, and hundreds.
Place Value Chart
Hundred
Thousands
3 7 6 5
,
WATCH ME FIRST

Understanding periods can help us read large numbers.
Let’s look at the number below.
Place Value Chart
Hundred
Thousands
3 7 6 5
,
WATCH ME FIRST

Watch as I read the number using the place value chart.
three thousand
Place Value Chart
Hundred
Thousands
3 7 6 5
,
WATCH ME FIRST
seven hundred sixty-five

READY?
Now, I’ll read a 3-digit number.
This time, read the number aloud with me.
Place Value Chart
Hundred
Thousands
5 3 7
WATCH ME FIRST

Place Value Chart
Hundred
Thousands
5 3 7
WATCH ME FIRST
five hundred thirty-seven

Now that we know how to read numbers using
a place value chart, we can also use it to find
the value of a digit in a number.
WATCH ME FIRST

Did You Know?
Digits and numerals are different. A digit is a
single symbol that is used to make numerals,
just as letters make up words. A numeral is a
symbol that represents a number.
284
digi
digi
digi
284
numeral
cat
lette
lette
lette
r
cat
word

TWO things can help us identify the value of a digit.
1. THE
DIGIT
2. ITS PLACE IN THE
NUMBER
Place Value Chart
Hundred
Thousands
6 4 0 8
,
WATCH ME FIRST

Place Value Chart
Hundred
Thousands
6 4 0 8
,
For example, if I want to find the value of a digit in the number
below, I can look at the digit and its place in the number.
WATCH ME FIRST

Place Value Chart
Hundred
Thousands
6 4 0 8
,
The value of the digit 6 in the number below is…
6,000
WATCH ME FIRST

Place Value Chart
Hundred
Thousands
6 4 0 8
,
400
WATCH ME FIRST

Place Value Chart
Hundred
Thousands
6 4 0 8
,
0
WATCH ME FIRST

Place Value Chart
Hundred
Thousands
6 4 0 8
,
8
WATCH ME FIRST

LET’S WORK TOGETHER

PROBLEM #1
Place Value Chart
Hundred
Thousands
9 3 3
READY?
Use the table to read the number aloud with me.

PROBLEM #2
Place Value Chart
Hundred
Thousands
1 3 5 2
,
READY?

PROBLEM #3
Place Value Chart
Hundred
Thousands
7 0 7
READY?

PROBLEM #4
857
What number is this?

PROBLEM #4
7 ones = 7 =
857
What is the value of the
underlined digit?

PROBLEM #5
574

PROBLEM #5
underlined digit?
7 tens = 70 =
574

PROBLEM #6
703

PROBLEM #6
7 hundreds = 700 =
underlined digit?
703

PROBLEM #7
How does the value of the 7
change in the numbers?
857 574 703
7 ones = 7 7 tens = 70 7 hundreds = 700
The value of the 7 increases in the numbers above (10 times greater in each).
It starts as 7 in 857, then 70 in 574 and finally 700 in 703.

How far away is 74 from 70?
LET’S DO ONE MORE
TOGETHER…

PROBLEM #8
Ben says the value of the digit 5 in the number below is 100
because the digit 5 is in the hundreds place. Do you agree
or disagree with Ben? Explain your answer.
534
EXPLAIN
Draw a picture to represent the entire number
Use base ten blocks to
show the number.
Using what we know, do
you agree or disagree?
Disagree. The value of the digit 5 is 500.
Ben only looked at the place value of the
five and not the digit itself.

IT’S YOUR TURN

Now it’s “YOUR TURN” to Solve
Don’t forget to show your work!

How did you solve?
Check Your Answers
Time to Discuss and

Problem #1
YOUR TURN
40
Read the number aloud and write the value of the underlined digit.
328

Problem #1
YOUR TURN
40
328
8 ones = 8 =

Problem #2
YOUR TURN
40
860

Problem #2
YOUR TURN
40
860
6 tens = 60 =

Problem #3
YOUR TURN
40
205

Problem #3
YOUR TURN
40
205
2 hundreds = 200 =

Problem #4
YOUR TURN
40
Circle all the numbers where the value of the 4 is 40.
1,040
402
704
941
4,615
649

Problem #4
YOUR TURN
40
Circle all the numbers where the value of the 4 is 40.
402
704 4,615
941 649
1,040

Problem #5
YOUR TURN
40
Explain
Kay says that the value of the underlined digit is 7.
What mistake did Kay make?
2,701

Problem #5
YOUR TURN
40
Kay says that the value of the underlined digit is 7.
What mistake did Kay make?
2,701
The value of the underlined digit is 700.
Kay only looked at the digit and not the place value.
Explain
Place Value Chart
THOUSANDS
PERIOD
ONES PERIOD
Hundred
Thousands
Ten
Thousands
Thousands Hundreds Tens Ones
2 7 0 1
,

Problem #6
YOUR TURN
40
Sherry says the value of the digit 6 in the number below is 60
because it is in the tens place. Do you agree or disagree with
Sherry? Explain your answer.
465
Explain

Problem #6
YOUR TURN
40
Sherry says the value of the digit 6 in the number below is 60
because it is in the tens place. Do you agree or disagree with
Sherry? Explain your answer.
465
Explain
I agree with Sherry because
6 tens is equal to 60.

Let’s Reflect
It’s reflection time!

U1L1_-_Find_the_Value_of_a_Digit.pptx

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