Illustrative Mathematics
Counting by Tens
With this daily counting activity, your kindergartners will master counting in sequence automatically from 0 to 100, and will count in multiples of ten to 100. With the whole class, count to 100. With each number, learners will whisper...
Curated OER
Count by Tens (Flowers)
Skip counting by 10, young mathematicians determine the number of flowers (grouped by tens) in 6 different rows. They write the number alongside the flowers. Quantities range from 1 group (10) to 5 groups (50).
Curated OER
Count by Tens to 50 (Hearts)
For Valentine's Day math review, primary learners count the hearts (in groups of 10) on each of 7 lines of a worksheet. Skip count by 10s and write the number of hearts (range: 10-50) in a space on the right hand column of the page.
Curated OER
Choral Counting I
Using a 100s chart or a number line with a pointer, work with your class to count up to 100 by ones and tens. As a part of daily instruction, prompt your kindergartners to chant count from 1 to 30. Move on to 1 to 50, and then from 1 to...
Curated OER
Counting by 2s, part 2
Two, four, six, eight...can your scholars count by twos? They fill in missing numbers in 18 number sequences, all of which require skip counting by twos. Some begin on an even number and others odd, however all of these are whole...
Curated OER
Ten by Ten
Learners participate in hands-on activities using a hundreds chart and counting toes and fingers. They discover the patterns that are created when counting by ten. After a lecture/demo, students practice by using a worksheet embedded in...
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Curated OER
Counting in Tens, Beginning with 70
Mr. Mouse instructs kids to fill in the blanks by counting 10's. They skip count by 10s to finish each of the 6 number lines. Learners will count by 10 beginning at 70, 100, 90, 50, 140, and 260.
Curated OER
Counting in Tens From a Given Number
In this counting worksheet, students fill in the spaces on the worksheet by counting by ten. There are 6 number patterns to complete, and each has 5 blanks to fill in. The answers are on the last page.
Curated OER
Count by 5s, 10s, and 100s
There's an easier way to count! Scholars get practice counting by 5 and 10 in this skip-counting worksheet. There are 10 problems, and for each they observe a set of objects that have been grouped. Learners skip count to get a final...
Curated OER
Counting in Tens
For this counting worksheet, students fill in the missing numbers by counting by tens and recording the numbers in sequence. Students solve 18 problems.
Curated OER
Balloon Bop: Skip Counting
Practice counting in patterns and skip counting by 1, 5, and 10. Once the patterns have been taught, teams of 5 or 6 learners -- holding hands in circles -- skip count each time they collectively bounce a balloon up into the air. Early...
Curated OER
Counting on a 100 Square
Counting by twos, fives, and tens is a great way to build the skills and number sense needed to better grasp the concept of multiplication later on. Here are six number charts to 100, each chart is highlighted and requires the class to...
Curated OER
Learn To Count By Tens
In this counting by tens activity, students count groups of ten, observe the numerals ten to one hundred, and solve the total of ten sets of ten.
Curated OER
Tens and Ones Worksheet: Writing 2-Digit Numbers
Before they can even skip count by tens, your youngest mathematicians can write 2-digit numbers simply by counting the number of tens represented in a picture, then the number of ones shown, and transferring their answers to the...
Curated OER
Counting, Properties of Numbers, and Reasoning about Numbers
Five days of lessons develop number sense and counting patterns, including odd and even numbers, 5s and 10s, doubles, and ways to make 10. Each session opens with fun finger play to reinforce counting and reasoning about numbers. Various...
Curated OER
Sequencing and Counting on
This series of slides gives learners an opportunity to count on by 10's in number sequences then discuss how to apply counting on to addition and subtraction problems. Learners count on and back by 1's, 10's, and 100's.
Houghton Mifflin Harcourt
Mental Math: Subtract Tens - Homework 12.1
Now that your class can add by 10s they can start subtracting by 10s. This clear, learner-friendly worksheet provides a good example (10-rods are pictured) and 7 problems to solve. Relates groups of tens to single-digit numbers, which...
Curated OER
Primary Counting Skills
Class members drill and practice counting skills from 1 to 20. They count along with a puppet and when the puppet makes a mistake, they correct it. In pairs, they connect cubes to make a train and count the number used. On the last of...
Illustrative Mathematics
How Many Days Until Summer Vacation?
On the 124th day of school, young mathematicians are asked to find out how many days are left in the 180-day school year. The teacher version to the task offers several ways the problem can be solved, and can be used to guide...
Curated OER
Exercises: Counting by 10s
You've found six problems sure to help your class understand adding tens and hundreds. First they fill in a chart by adding 10s, then they make 100 in different ways. They then use a hundred chart to complete three different patterns,...
Curated OER
Counting to 100: Step-by-Step
Introduce your pupils to the hundreds chart! This pair of worksheets is designed to walk them through the patterns they see in the chart as they count by ones and 10s. They fill in missing numbers on a hundreds chart, using guided steps....
Curated OER
Hundreds and Tens - Count the Blocks & Rows
A perfect second grade worksheet. The class reviews counting by hundreds and tens using cubes, then count blocks and rows to determine how many cubes there are in a given set, 4 sets total.
Mixing in Math
Take Ten: Make Cleaning Up More Fun with Predictions and Counting
Class members predict and count how many items need to be cleaned up in class while skip counting by 10s. They estimate whether having each child clean up 10 items will be enough to get the room ready for the next day. Everyone counts...