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
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.
Curated OER
Adding 9's (A)
In this addition worksheet, students solve 40 problems in which the number 9 is added to a single digit. This could be used as a timed drill.
Curated OER
Adding 4 to a Single Digit
For this addition worksheet, students practice adding the number 4 to 10 single digit whole numbers. Students write their sums in the boxes provided.
Curated OER
Counting on 1, 2, and 3
In this counting one, two and three worksheet, students, working with a partner, practice answering seven word problems and equations.
Curated OER
Add Whole Numbers
In this addition worksheet, students add three and four digit numbers together. Students complete 96 addition of whole numbers problems.
Curated OER
Building 2-Digit Numbers
In this addition worksheet, 2nd graders use the building method to find the sums of 2-digit numbers. They find the totals in 6 examples that have three 2-digit addends in each problem.
Henrico County Public Schools
Models for Teaching Addition and Subtraction of Integers
Positive and negative numbers are everywhere in the world around us. Whether it's charged particles in atoms, a hot air balloon rising and falling in the sky, or a series of bills and checks being delivered in the mail, this...
Curated OER
Comparisons
Explore number value with learners through playing cards. They examine sets of three cards, adding up the value and comparing it to another set of three. Learners write in which is greater than or is less than to show number value...
National Security Agency
Fraction Fever
This unit on fractions allows for upper-aged elementary learners to explore ways to find the greatest common factor and least common multiple of two numbers. Ultimately, young mathematicians will be able to identify equivalent fractions,...
Curated OER
How Many?
Working with numbers 1-10, beginning counters complete five exercises to help them hone their skills. They examine two sets of sports balls, circling the ones at various number positions. Next, they count a set of ladybugs, recording the...
Curated OER
Addition Drills
Begin adding two-digit numbers with young mathematicians using this set of straightforward equations, none of which require regrouping. All have two-digit addends, and one sum is a three-digit number. Scholars can reference three...
Mathematics Assessment Project
Cross Totals
Finally, it all adds up. Learners complete a number puzzle in which they investigate the sums of the digits one through nine in a cross pattern. They then try to determine what totals are possible and which ones are...
Curated OER
Find Three Partners
In this addition worksheet, students solve 5 problems in which a picture is analyzed and a number sentence written to go with it. Students solve the addition problems. There will be three single digit numbers added in each problem.
Curated OER
Adding Mixed Numbers 1
For this adding mixed numbers worksheet, students write addition sentences using pie charts, add mixed numbers with the same denominator, and write mixed numbers as fractions in simplest form. Students solve nine problems.
Curated OER
Study Buddies: Adding and Subtracting Decimals
In this math worksheet, students will work with a coach to add and subtract numbers with decimals to the hundredths. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Adding Greater Numbers
In this addition worksheet, 3rd graders solve 12 addition math problems dealing with 4-digit numbers and money. Students answer 3 addition word problems and 2 addition problems with multiple choice answers.
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Calculations with Negative Numbers
For this algebra worksheet, students solve algebraic equations by addition with negative numbers. There are 3 questions with an answer key.
Curated OER
Subtraction: 2 digit numbers with regrouping
In this subtraction worksheet, students subtract two digit numbers from other two digit numbers with regrouping. Students complete 30 subtraction problems.
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Adding Mixed Numbers
In this adding worksheet, students practice adding mixed numbers, with like denominators. They reduce their answers to lowest terms. There are examples and nine problems on this one-page worksheet. An answer key is included.
Curated OER
Mixing Mixed Numbers Art/Creating Fractions
Third graders explore number values by participating in class math activities. In this fractions lesson, 3rd graders collaborate with classmates to discuss the technique of adding mix numbers while utilizing paper plates to help...
Curated OER
Fractions XI Adding Mixed Numbers with Unlike Denominators
This PowerPoint demonstrates how to add mixed numbers with unlike denominators. The slides display examples of problems, along with steps that students can easily follow.
Math Mammoth
Adding Fractions And Mixed Numbers 1
In this mathematics activity, 4th graders add the fractions and shade the parts illustrated in each picture. Then they write the whole numbers from 0 to 5 under the bolded black lines. Students also add and give their answer as a mixed...
Curated OER
You've Got My Number challenge
In this finding the number word problem worksheet, students use the clues one more is and ten more is to discover the mystery number. Students solve eight problems.