Curated OER
Missing Hundred Square
Kids are presented with the problem of finding the missing numbers to each of nine 100s squares. They'll need to subtract and add to make each puzzle equal 100. Great challenge or daily warm-up activity.
Houghton Mifflin Harcourt
Unit 1 Math Vocabulary Cards (Grade 1)
Reinforce mathematical vocabulary with the use of flash cards. Each card showcases a boldly typed word as well as a labeled picture representation of the word. Terms include addition, subtraction, greater than, less than, and more!
Curated OER
Celebrating 100 Years of Flight
Participate in the 100th anniversary of the first flight. In groups, learners use the internet to research the roles the Wright Brothers and Amelia Earhart played in promoting the use of flight. They use the information to write and...
Curated OER
Horizontal Mixed Addition and Subtraction Using Numbers Between 1 and 100
In this mixed addition and subtraction worksheet, 2nd graders find the sums and differences in 15 problems. They add and subtract one and two digit numbers between 1 and 100, submit and enter them online, or print the page.
Curated OER
All Two Minute Test
In this addition facts practice instructional activity, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Curated OER
All Two Minute Test, #2
In this addition facts practice worksheet, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Curated OER
Add and Subtract Decimals
In this decimal worksheet, students read about adding and subtracting, then complete a set of 31 problems, adding, subtracting, solving for values of expressions and solving equations.
Curated OER
Add Nine to Two-Digit Number Year 3
In this finding the sums worksheet, 3rd graders add the numeral nine to two digit numbers using word problems, input forms, and number problems. Students solve 18 problems.
Curated OER
100 Addition Facts - Form D
In this addition facts worksheet, students use their math skills to solve 100 problems that require them to add 1-digit numbers to 1-digit numbers.
Curated OER
100 Addition Facts - Form B
In this addition facts worksheet, students use their math skills to solve 100 problems that require them to add 1-digit numbers to 1-digit numbers.
Curated OER
100 Addition Facts - Form C
In this addition facts worksheet, learners use their math skills to solve 100 problems that require them to add 1-digit numbers to 1-digit numbers.
Curated OER
One-Digit Addition; With Regrouping (B)
In this addition review worksheet, students use problem solving skills to solve 100 problems that require them to add 1 digit numbers with regrouping.
Curated OER
Math Drill - Addition #2
In this math drill practice worksheet, students use their addition facts skills to solve 100 problems that require them to add 1 digit numbers to 1 digit numbers.
Curated OER
Addition of Numbers (Under 100) - Guided Lesson Explanations
Rather than a worksheet, this teacher resource is a one-page, scripted answer sheet for a guided lesson on the addition of numbers under 100. While the pupil handout is missing, the teacher guide could be reformatted for classroom use.
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...
Teacher's Guide
Adding Tens
Given a hundred chart and several examples, learners practice adding 10s. They are given a number then use the chart to aid in adding 10, 20, 30, 40, or 50. There are 25 problems to solve. Tip: Have learners color in all the tens prior...
Curated OER
Use a Number Line to Add
Your first and second math class will develop a higher understanding of addition after using the number line. Word problems are provided, and learners use the number line to illustrate and solve each problem. For advanced learners,...
Curated OER
Addition Word Problems
These word problems are a medley of addition practice; scholars add prices, chew toys, pages read, miles, and more. For each, there is a box for learners to show their work. Remind your class to read the...
CK-12 Foundation
Prime and Composite Numbers
Nine true or false, multiple-choice, and discussion questions make up an interactive designed to reinforce scholars' knowledge of prime and composite numbers. A number chart reveals every prime number through 100.
Curated OER
Multiplying by 10, 100, & 1000
Students understand that a shortcut can be used when multiplying by 10, 100 & 1000. In this multiplying lesson plan, students mentally multiply by 10, 100 & 1000. Students complete a worksheet with multiplication problems.
Curated OER
Add and Subtract Whole Hundreds
In this addition and subtraction activity, students add and subtract whole hundred numbers. Students complete 5 problems on this activity.
Curated OER
Round Each Number to the Nearest 100
In this math worksheet, students round 3 digit numbers to the nearest 100. In the chart students analyze the 3 digit number, check whether it should be rounded up or down, then write the rounded number.
Curated OER
Easter Addition (Sums to 100)
For this addition worksheet, students add integers and place the answer in the egg. All numbers are between 10 and 99. This one-page worksheet contains 25 problems. An answer sheet is included.
Curated OER
Subtraction: Two Digit By One Digit With Regrouping
In this subtraction worksheet, 3rd graders find the differences to 30 problems in which they subtract a one digit number from a two digit number. They regroup as needed.