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Curated OER
Decade Toss
In this decade learning exercise, students fill in a decade chart and find the totals of each player based on a decade game that is played. Students fill in 3 spots on the chart and answer 3 short answer questions.
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Two-Digit Addition
In this addition worksheet, 2nd graders solve 18 addition math problems with two-digit numbers. Students utilize the tens and ones models and the process of regrouping.
Curated OER
Popsicle Stick Regrouping Fun
Students demonstrate regrouping in subtraction. In this math computation lesson, students use popsicle sticks to practice the regrouping strategy. Students practice several examples of regrouping problems in small groups.
Curated OER
Mental Subtraction Methods
In this subtraction worksheet, students subtract problems using mental math methods such as tens groups, comparing problems, helping numbers, and more. Students complete 7 sets of problems.
Pennsylvania Department of Education
Round Numbers to Nearest Ten or Hundred
Third graders review telling time. In this lesson plan on telling time, 3rd graders discuss various items that show length of time, including clocks, calendars and sand timers. Students review and practice what they already know about...
Curated OER
More Thousands
In this thousands learning exercise, students fill in commas to numbers, read numbers, add numbers, and more. Students complete 7 sets of problems.
Curated OER
All Kinds of Numbers
Count and compare numbers and fractions using "greater than" and "less than." Learners count on by 2s and 10s and represent the end number with base ten blocks, counters, and cups. They use circle stickers to illustrate fractions and...
Fuel the Brain
Brain Boosters - Add Ten on a Number Line
Encourage learners to use pictures, numbers, or words to solve two-word problems in which they count by 10's using a number line. They tell the total number of items the child has in each problem by starting at a given number and adding...
Curated OER
Tens and Ones
In this math literacy worksheet, students fill in the blocks in order to count the values for each of the nine boxes with large ten and small ones values.
Curated OER
Subtract Tens on a Hundred Chart
In this subtraction worksheet, 2nd graders focus on the skill of regrouping. Students solve 10 two digit subtraction problems mastering the necessary regrouping of tens.
Curated OER
How Many Cards Do We Need to Display the Dates of the Month?
Students complete activities to study the concept of place value notation. In this place value lesson, students use cards for the days of the month that only number from 1 to 9. Students find a subtraction pattern to determine the amount...
Curated OER
Larger and Smaller Numbers 3
In this mathematics activity, students color the box in each set with the smaller number first. Then they color the box in each set with the larger number at the bottom of the page.
Curated OER
Larger and Smaller Numbers 2
In this mathematics worksheet, students color the box in each set with the smaller number on top of the sheet. Then they color the box in each set with the larger number on the bottom of the sheet.
Curated OER
Hundred Number Chart Tiles
In this mathematical worksheet, students count one hundred different colored tiles to master the ability to count to hundred by tens.
Curated OER
How Many Ways?
Second graders develop number sense. For this number sense lesson, 2nd graders use multiple ways to represent numbers including written numerals, tally marks and manipulatives. Students correctly use place value to the thousands place.
Curated OER
Calculator Activity: Build Up
In this using a calculator to solve problems worksheet, students observe examples of building up, follow directions for using a calculator, and write the numbers for tens and ones. Students solve three problems.
Illustrative Mathematics
Boxes and Cartons of Pencils
Boxes and cartons of pencils are a natural, real-world example for understanding bundles of ten and their relationship to a hundred. When you have many cartons, you can discuss place value, and how to represent multiple hundreds.
Curated OER
Mentally Add Larger Numbers
Using what they know about adding 10s and 100s, learners attempt to mentally solve 18 addition problems. Each problem requires them to think of the nearest 10 or 100, add them together, then add the remaining units.
Curated OER
Number Breakdown and Description Worksheet
How many ones and how many tens? Explore place value and addition. Learners begin by solving two missing addend problems followed by an addition and subtraction equation. Then, they read two sentences describing numbers by their place...
Curated OER
Pac Man Subtraction
Third and fourth graders engage in a game using visual symbols, auditory responses and tactile stimuli to further their understanding of subtraction. A worksheet imbedded in this plan explains how to teach the game.
Curated OER
Investigation - Representing Place Value
Third graders demonstrate models to represent a 3 digit counting number. They use manipulative materials to represent place value in whole numbers. Students represent numbers in expanded notation.
Curated OER
Calendar Time
Use circle time to work on counting. Kindergarteners practice the months of the year, say the full date, chart the day's temperature, count to 100, and sing the alphabet song. This kind of daily routine cultivates deep roots for...
Curated OER
Math Series: Number Patterns
The focus of this math lesson plan is representing numbers in different ways. Young mathematicians practice putting numbers into sets, and arriving at answers in new ways. For example, they are asked to, "Show me how to get 7 eyes." A...