Name: Counting Groups of 10 Activity
SKU: 61191960ec1b1e303c26a87a
Price: 39.99 USD
Availability: InStock

About this resource

What's inside this resource

Number cards from 10 through 120 (by tens, plus a jump to 120) are paired with matching activity cards showing groups of ten objects, so students physically match each two-digit multiple of ten to the correct number of ten-groups. The brief instructions on the first page explain the underlying place-value concept: each number card such as 20, 50, or 90 represents that many tens and zero ones. The activity is built around a hands-on card-matching format rather than a written worksheet with problems to solve, and it does not include an answer key since matching is self-checking by design. A 'Numbers 11-19' heading also appears, suggesting the same card set may extend to teen numbers, though that portion is not shown in the available text. Once students are confident that each ten-group equals ten ones, that same place-value understanding carries directly into the addition and subtraction with regrouping worksheets, where regrouping between the tens and ones columns depends on it.

Product description

From the author

This activity is perfect for helping students learn to count by 10s. By using the ten frames, students will be able to see the patterns in our number system and count all the way to 120. This is a great way to build number sense!

In the classroom

Teaching tips & learning objectives

Learning objectives

Match a two-digit multiple of ten to the correct number of ten-groups.
State that a number like 50 represents five tens and zero ones.

Teaching tips

Use as a self-checking math center -- students match cards independently since a mismatched pair would look visually wrong.
Extend a completed 10-90 set by asking students to predict what card would come next (100, then 110, 120).
Introduce the 'Numbers 11-19' portion of the set separately from the tens-matching cards to avoid conflating teen numbers with multiples of ten.

Skills covered

Place-value understanding of tens -- students match number cards (10, 20, 30 ... 120) to sets representing that many groups of ten.
Skip counting by tens -- students work with the sequence 10, 20, 30 ... 100, 120 as they sort and match cards.

Good to know

Questions teachers ask about this resource

How does the 'Numbers 11-19' card set relate to the tens-matching activity?

The file lists 'Numbers 11-19' as a separate heading from the tens-matching cards, which suggests an additional teen-number card set included alongside the groups-of-ten matching cards, though the text does not describe how those teen-number cards are formatted or used within the same activity.

What is the number-card sequence used in this tens-matching set?

The extracted number-card text runs by tens from 10 through 90, then jumps to 100 and 120, covering that range for the groups-of-ten matching activity.

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Curriculum

Standards, concepts & topics

Standards

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: a. 10 can be thought of as a bundle of ten ones — called a “ten.” b. The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones. 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).