Curated OER
Horizontal Three Digit Place Value Addition
In this addition worksheet, 3rd graders focus on adding three different numbers. Students solve for 16 horizontal problems with no regrouping necessary.
Curated OER
Horizontal Four Digit Place Value Addition
For this addition worksheet, 3rd graders focus on adding four different numbers. Students solve for 16 horizontal problems with no regrouping necessary.
Curated OER
Column Addition: Three Digits, No Carrying
For this column addition of three digits with no carrying worksheet, students solve 13 problems, adding the ones, then the tens, then the hundreds columns.
Curated OER
Decimals
In this decimals worksheet, 5th graders solve 20 different problems that include adding and subtracting various decimals. First, they add or subtract the decimals like they would whole numbers. Then, students line up the decimal points...
Curated OER
Column Addition 3 Digit Sheet
For this addition worksheet, students add three digit numbers together. Three problems have the students adding three-three digit numbers together. The students work through 15 problems.
Curated OER
Adding and Subtracting Whole Hundreds
Kids count by 100 to determine a number in the thousands. They fill in the missing number by counting on 100 starting at the number 5000. They then add 100 to numbers like 2800 and 2600. There are 12 problems to solve.
Curated OER
Calc-You-Late Magnitudes
First graders are introduced and practice using a calculator. Individually, they enter and complete simple addition and subtraction problems. After the answer is displayed, they identify the place value for ones, tens, and hundreds...
Curated OER
Understanding number to 100
Students research equivalent representations of numbers using the base 10 system. For this Base 10 lesson, students examine place value, representations of numbers, and multiples of one, ten, and one-hundred.
Carstens Studios
Math Doodles
Discover the joy and excitement of improving your math fluency through four different puzzles. Combine those with 25 different ways to represent numbers and you have hours of enjoyment that can be fun outside of the classroom as well.
EngageNY
Estimating Digits in a Quotient
Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The lesson shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the division. Some...
Curated OER
Adding Tenths
In this mathematics worksheet, 4th graders identify what is missing from the whole 1 in each problem. Then they draw a number line from 0 to 2 with tick marks at every tenth place. Students also add each decimal and write their...
Granite School District
Activities that Build Number Sense
Have fun while building the number sense of young mathematicians with this list of ten-frame learning games. From developing cardinality and counting skills to learning place value and basic addition strategies, ten-frames are excellent...
Curated OER
Thanksgiving Addition
A handy instructional activity on adding 3-digit numbers is here for you. Third graders practice the skills of carrying numbers from one place value to the next when adding numbers like this. An answer key accompanies the instructional...
EngageNY
Decimal Expansions of Fractions, Part 1
Is it possible to add infinitely long decimals? As pupils complete the examples in the ninth lesson of this 25-part series, they determine that adding these decimals cannot be done without error. Their task is then to determine the size...
Illustrative Mathematics
Multiples of Nine
Which numbers are multiples of 9? Task class members to find the first ten multiples of 9 in a straightforward assessment worksheet.
DK Publishing
Addition Practice #2
Encourage young scholars to tap into their inner math-whiz as they add three and four-addend equations. The first 36 problems each have three addends (none over two-digit), and are written horizontally. Next, they complete eight more...
Curated OER
Add Decimal Hundredths (C)
For this addition of decimals to hundredths place value worksheet, students rewrite the horizontal numbers and add with regrouping. Students solve 32 problems.
Curated OER
Add Decimals Hundredths (F)
In this addition of decimals to the hundredths place value worksheet, students rewrite the horizontal problems and add with mixed regrouping and no regrouping. Students solve 32 problems.
For the Teachers
$1 Math
Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson. Using the coding formula listed, children learn to fluently estimate and calculate simple sums.
Curated OER
Column Addition reteach 4.6
In this adding two-digit and three-digit numbers worksheet, students find the sums of groups of thee and four numbers by rewriting the numbers in place value columns, and adding each column with regrouping. Students solve fourteen problems.
Curated OER
Addition With Decimals - A
In this finding the sums instructional activity, students add whole numbers with decimals adding zeros to make equivalent place values. Students solve 30 problems.
Curated OER
Adding and Subtracting Decimals
Students practice adding and subtracting numbers with decimals. For this decimals lesson plan, students use grid paper and money to learn how to add and subtract decimals.
Curated OER
Add Decimal Thousandths (E)
In this decimals worksheet, students solve 50 problems in which decimal numbers to the thousandths place are added. The problems will need to be rewritten on another paper.
Curated OER
Adding Two- and Three-Digit Numbers
For this adding two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to eight mathematical word problems and equations.