Lesson 7 Numbers Within 100,000

    • Let’s read, write, and represent multi-digit numbers.

Warm-up Choral Count: By 1,000

  • Count by 1,000, starting at 3,400.

  • Stop counting and recording at 23,400.

Activity 1 Count and Write Numbers

Problem 1

Record each count in the given spaces. The first number has been recorded for you.

  1. Count by 1,000

    5,000,, , , ,

  2. Count by 100

    9,500, , , , ,

  3. Count by 10

    9,950, , , , ,

  4. Count by 1

    9,995, , , , ,

Problem 2

Complete each statement:

  1. Ten-thousand is 1 more than .

  2. Ten-thousand is 1,000 more than .

  3. Ten-thousand is 10 more than .

  4. Ten-thousand is 100 more than .

Activity 2 Many Thousands

Problem 1

  1. Complete the table to show how many thousands are in each number. In the last row, write your own five-digit number.

  2. With your partner, name each number in words. (Leave the last column blank for now.)

  3. In the top (header) row of the last column, write “number of ten-thousands.” Complete the table to show how many ten-thousands are in each number.

number

number of thousands

name in words

10,000

ten thousand

20,000

90,000

11,000

27,000

98,000

Problem 2

Here are four numbers:

20,500

51,300

82,050

5,970

  1. Which number has a 5 in the thousands place?

  2. Which number has a 5 in the ten-thousands place?

Practice Problem

Problem 1

  1. Count by 10,000 starting at 6,500 and stopping at 66,500. Record each number:

  2. Pick two numbers from your list and write their names in words.