Houghton Mifflin Harcourt
Numbers 11-19
Develop the concept that numbers from 11 to 19 are essentially a 10, plus more! The first two of the six story problems on this sheet are scaffolded with pictures. Learners compose and decompose numbers to answer how many 10s and how...
National Security Agency
Expanding Place Value
Learners explore place value. This incredibly thorough and valuable mathematics lesson, has students make a number wheel to assist in the completion of a Place Value worksheet. Students use manipulatives and a place value mat to further...
Curated OER
Tens and Ones
In this counting by groups worksheet, students practice counting by tens and then by ones. Students count the rows of ten and single cubes and then write how many cubes there are all together.
Curated OER
Using Tens Frames for One to One Counting
Students complete a variety of exploratory exercises regarding counting through 10. They recognize the numbers 0-10 as represented using the quinary pattern on the tens frames. They are able to visualize the patterns for future...
Curated OER
Count on Whole Tens
In this counting instructional activity, students complete a set of 5 problems, adding a "whole ten" number to a 3-digit number, then complete 6 additional problems, adding 90 to given numbers.
Curated OER
Estimation Station
Students explore estimation and count by tens with Goldfish crackers.
Curated OER
How Many Are There?
This is a very basic activity intended to provide practice in solving word problems involving subtraction. Learners read the word problems then subtract to find the answer. An answer key is included.
Curated OER
Unidades y Decenas
Using examples of numbers less than one hundred, this presentation in Spanish provides a visual representation of arrays. It would be a great way to help learners understand the concept of tens and ones.
Curated OER
Add Tens and Ones
Six story problems challenge young mathematicians to add single- and double-digit numbers. Manipulatives would come in very handy for primary graders tackling this learning exercise. Some of the sums have addends as large as 25 and 33....
American Farm Bureau Foundation for Agriculture
My American Farm
Hee-haw! Have a bale of fun with these agricultural games! Five games are geared up for kindergarten through fifth grades and are useful for addressing Common Core standards in mathematics.
Curated OER
Subtracting From a Multiple of 10
In this subtraction activity, 2nd graders are instructed how to subtract two digit numbers from multiples of 10 by counting on. There are two pages with 10 problems on each page.
Curriculum Corner
Back to School Math and Literacy Centers
From filling in the missing number to filling in the missing letter; to writing fluency sentences to skip counting and matching, a complete set of back to school math a literacy centers will not disappoint. Use these activities...
Curated OER
Add Groups of Ten
In this addition worksheet, learners add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Curated OER
Group Triangles Into Fives Or Tens
In this grouping into fives and tens worksheet, 2nd graders group pictures of triangles by drawing circles around sets of ten. They work with 50 pictures of small, right triangles.
Curated OER
Count by Grouping Into Tens
In this counting by grouping worksheet, students group shapes into tens by circling either groups of 5 or ten in ech. A reference website for additional resources is given.
Curated OER
Tens and Ones
In this tens and ones worksheet, students count numbers of shapes in groups, writing the number of tens and ones in each set, then writing the total number beside each.
Curated OER
Numbers
In this number worksheet, students practice writing the numbers from one to forty. They then practice counting by ten and writing those numbers as well. The page contains 50 numbers that need to be written in the blanks provided.
Curated OER
Count to Ten
In this counting from one to ten worksheet, students fill in the missing numbers on the tens chart. Students fill in 7 answers.
Curated OER
Counting Back by Tens
For this counting backwards worksheet, 2nd graders study and review a chart to assist them in solving 4 subtraction math problems.
Curated OER
Counting On Tens
In this counting on tens worksheet, students use a chart from 0 to 50 to add tens to a number. Students start at the specified number, then move as many rows as necessary to add the multiple of ten.
Curated OER
Playing with Tens and Ones
First graders complete a number of activities that increase their number sense and use of simple operations. They use dice and worksheets to make two-digit numbers and to record them, they count by tens and ones, and order numbers using...
Curated OER
Count on Tens to Add: Homework
In this counting on tens worksheet, students use the hundreds chart to help add the problems. Students complete six addition problems and one word problem.
Curated OER
Count Down in 10's
In this counting down worksheet, students count down by 10 from given numbers, 4 rows total. An answer key is included on page 2.
Math Salamanders Ltd.
Place Value-Tens and Ones 1
In this place value worksheet, students count the base 10 squares, counting tens first and then ones. Students write the total amount counted. A reference website is provided for additional activities.