teaching resource

# Expanded Form Dominoes (2-Digit Numbers)

PDF | 3 pages | Grades: 1 - 2

A set of dominoes to reinforce student understanding of place value.

Use this teaching resource when students are learning to write numbers using expanded form.

Print out the dominoes on cardstock and cut them out. Store them in a resealable bag to be used over and over again.

Individually, or in small groups, students connect the dominoes by matching the 2-digit number with the correct expanded form.

### Curriculum

• #### CCSS.MATH.CONTENT.1.NBT.B.2

Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:

• #### CCSS.MATH.CONTENT.1.NBT.B.2.A

10 can be thought of as a bundle of ten ones - called a "ten."

• #### CCSS.MATH.CONTENT.1.NBT.B.2.B

The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

• #### CCSS.MATH.CONTENT.1.NBT.B.2.C

The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

• #### CCSS.MATH.CONTENT.2.NBT.A.1

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

• #### CCSS.MATH.CONTENT.2.NBT.A.3

Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

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