Lesson Plan
Curated OER

Exercises: Counting by 10s

For Teachers 1st - 2nd Standards
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,...
Worksheet
Open Text Book Store

Arithmetic for College Students: Worksheets

For Students 5th - 7th Standards
Loaded with concepts ranging from multiplying decimals to converting units to solving problems using the order of operations, a thorough practice packet is perfect for a fifth or sixth grade math classroom.
Lesson Plan
West Contra Costa Unified School District

The Power of Ten: Building a Magnitude Model

For Teachers 4th - 5th Standards
Add visual representation to teaching place value with a magnitude model. Using adding machine tape, pupils build a linear place value strip from 1 to 100.
Worksheet
Curated OER

Tens and Ones

For Students K - 2nd
Learners view three problems involving adding or subtracting with ones and tens. Each problem is followed by an explanation and an answer as to how the problem should be done. Note: This resource contains incorrect grammar and could be...
Worksheet
Curated OER

Make Ten Bundles

For Students K - 2nd
How many rolls until you get to 100? Young mathematicians will have a blast with this place value game, which has them rolling a die and placing a corresponding number of popsicle sticks in the "ones" column of their mat. Once they get...
Worksheet
Curated OER

Addition Practice #1

For Teachers 2nd - 4th Standards
Show young mathematicians that they are fully capable of mentally adding two-digit numbers. They start by solving 12 two-addend problems (all with two-digit numbers and aligned horizontally). There is no room to show work. Consider...
Worksheet
Curated OER

Adding With Whole Tens

For Students 2nd - 3rd
In this addition worksheet, students use pictures of bars and numeric problems to add whole tens and complete addition problems. A website reference is given for additional activities. 
Worksheet
Curated OER

Count on Whole Tens

For Students 3rd - 4th
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.
Worksheet
Curated OER

Working with 10s and 1s, Part 2

For Students K - 2nd Standards
Practice place value by visualizing 10s and 1s. First graders count the cubes in each place, then write the total number at the bottom. In one particularly helpful section, they draw the cubes that will add up to a given number. Bring in...
Worksheet
Curated OER

Multiplying by 10

For Students 2nd - 4th
Multiplying by 10 is simple, but do your scholars know the trick? They look at four examples; if you haven't learned this yet, see if they notice a pattern in these answers. They multiply 70 numbers by 10. Most are two-digit, but a few...
Worksheet
Curated OER

Multiplying by 2-Digit Numbers

For Students 4th - 6th Standards
Need some practice multiplying large numbers? Bring this list of problems to your fifth grade class to use as a review of multiplication of 3 digit numbers by 2 digit numbers. The format of this resource makes it a good quiz or homework...
Worksheet
Curated OER

Vertical Three Digit Place Value Addition 1

For Students 2nd - 3rd
In order to add 3 digit numbers together and understand place value learners add to find the standard form. THere are 40 problems in which the hundreds, tens, and units are added to find a sum. Note: This format may confuse some children...
Worksheet
Fuel the Brain

Joining by Tens

For Students 3rd - 5th
Used as a warm-up or exit ticket, your class will enjoy solving problems about dinosaurs and blocks. Adding 10 to any number may be tricky, so allow your learners to use manipulatives or draw on the worksheet itself!
Lesson Plan
Curated OER

Study Buddies: Dividing Two-Digit Numbers

For Teachers 3rd - 4th
In this math worksheet, young scholars will works with a coach to solve a story problem in which they must divide a two digit number by a single digit number. Students will follow a step-by-step process and notes are provided for the coach.
Worksheet
Curated OER

Mentally Add Two 2-Digit Numbers pg. 1

For Students 4th - 6th
Mental math addition is the focus of this worksheet. Students apply a strategy outlined in the worksheet to find the sums. In this worksheet, students find the answers for twenty problems. Answers appear at the end.
Lesson Plan
Curated OER

Counting On Tens or Ones

For Teachers 1st
In this mathematics worksheet, 1st graders count on tens or ones. They identify how many ones and tens that they are counting for each. Then, students write the sum for each problem.
Worksheet
Curated OER

Addition: Two Digit Mental Addition

For Students 3rd - 5th
In this 2-digit addition worksheet, students learn how to solve 2-digit math problems in their heads instead of on paper. They then solve the 20 problems on the worksheet. The answers are on the last page.
Lesson Plan
Curated OER

Adding Two-Digit Numbers

For Teachers 3rd - 4th
In this adding two-digit numbers worksheet, students, working with a partner, problem solve seven addition equations and word problems.
Worksheet
Curated OER

Add Two-Digit Numbers

For Students K - 2nd
In this addition worksheet, students practice adding 9 two-digit addition math problems involving tens, ones and regrouping. Students solve the answer to 1 test prep question and fill in the circle for the correct answer from a multiple...
Worksheet
Curated OER

Adding Two-Digit Numbers

For Students 2nd
In this addition instructional activity, 2nd graders add 6 two-digit numbers together, use tens and ones as models and circle yes or no if they needed to regroup.
Lesson Plan
Curated OER

Understanding Whole Numbers

For Teachers 4th
In this understanding whole numbers worksheet, 4th graders use a computer program for instruction, then answer 16 problems about addition and subtraction.
Worksheet
Curated OER

Comparing Numbers (up to 999)

For Students 4th Standards
For this number comparison worksheet, 4th graders compare 14 pairs of numbers and place either the greater than or less than symbol between each. They order 7 sets of numbers from least or smallest to greatest.
Worksheet
Curated OER

Subtracting Greater Numbers

For Students 4th
In this subtraction worksheet, 4th graders subtract 13 math problems involving 4 and 5-digit numbers. Students solve 1 word problem with a chart.
Lesson Plan
Curated OER

Multiplying By Whole Tens

For Teachers 7th - 9th
In this multiplying worksheet, students count by tens, write the rule for multiplying by ten, and then multiply numbers by ten. Examples and explanations are given prior to the exercise. This two-page worksheet contains approximately 30...