Base ten blocks and numbers

Base ten blocks and numbers

Lessons

In this lesson, we will learn:

  • How to use base ten materials to represent numbers
  • Writing numbers in expanded form

Notes:

  • Regrouping 

  • 10 ones can be regrouped into 1 ten:

    Representing Numbers: Tally Marks

    10 tens can be regrouped into 1 hundred:

    Representing Numbers: Tally Marks

    10 hundreds can be regrouped into 1 thousand

    Representing Numbers: Tally Marks
  • Introduction
    Introduction to Base Ten Materials
    Overview of lesson

  • 1.
    Representing Numbers with Blocks
    Show these numbers using base ten blocks
    a)
    28

    b)
    346

    c)
    105


  • 2.
    Numbers from Blocks
    What number is this?
    a)

    Representing Numbers: Tally Marks

    b)

    Representing Numbers: Tally Marks

    c)

    Representing Numbers: Tally Marks

    d)

    Representing Numbers: Tally Marks


  • 3.
    Regrouping
    Regroup hundreds as thousands, tens as hundreds and ones as tens
    a)
    2 hundreds + 12 ones + 17 ones

    b)
    9 hundreds + 14 tens + 15 ones


  • 4.
    Representation in Expanded Form (Using numerals and words)
    Write the number in expanded form using numerals and words
    a)
    89

    b)
    831

    c)
    4216


  • 5.
    Representation in Expanded Form (Using numerals)
    Write the number in expanded form using numerals
    a)
    74

    b)
    561

    c)
    3183