4/5 Module 1 lesson 3

Placing commas

● We noticed patterns in place values: ones, tens, and hundreds; thousands, ten-thousands, hundred thousands;
millions.

● To help us visually see these place values we use COMMAS

to indicate this grouping of units.

Placing commas

● Write 3608430325 on your white boards WITHOUT commas.

When looking at this it is hard to see the place values, which
makes it challenging to read the number.

● With your partner add commas. Remember, we use commasto show the GROUPING of place values.

● Where did you put your commas?

Placing commas/reading numbers

● Where would I place the comma? Why?

4

3

0

3

2

5

● How many TOTAL thousands are in the number?
● Listen to how I read this number.
● Your turn.

Add to make 10 of a unit and
bundling up to 1 million

• What would happen if we combined 2 groups of 5 tens?

• With your partner, draw place value disks to solve. If

you need to, express your answer in the largest unit.

● What is your final answer?

Add to make 10 of a unit and
bundling up to 1 million

• What would happen if we combined 2 groups of 5 hundreds?

• With your partner, draw place value disks to solve. If

you need to, express your answer in the largest unit.

● What is your final answer?

Add to make 10 of a unit and
bundling up to 1 million

• What would happen if we combined 4 hundreds and 6

hundreds?

• With your partner, draw place value disks to solve. If

you need to, express your answer in the largest unit.

● What is your final answer?

Add to make 10 of a unit and
bundling up to 1 million

• What would happen if we combined 3 hundred thousand

+ 7 hundred thousand

• With your partner, draw place value disks to solve. If

you need to, express your answer in the largest unit.

● What is your final answer?

3
7

Multiply multiple digits by
10: Problem 3

• Model 5 hundreds and 3 tens.

• What is 10 TIMES 5 hundreds and 3 tens?

Multiply multiple digits by 10:
Problem 3

Model 5 thousands and 3 hundreds.

What is 10 TIMES 5 thousands and 3 hundreds?

Where would I place the comma? Let’s read this
number together.

Multiply multiple digits by 10:
Problem 3

Solve 10 x 15,309. Use the place value chart to show your
thinking.

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