CK-12 Foundation
Linear Systems with Addition and Subtraction: Fill in the Boxes 2
Systematically combine shapes to arrive at one solution. The resource models a system of linear equations using colored shapes. Pupils follow rules to combine circles and squares to add the two equations together, resulting in one...
CK-12 Foundation
Linear Systems with Addition and Subtraction: Fill in the Boxes 1
Eliminate a color by dragging shapes. The interactive provides a graphical color display that allows for pupils to solve a linear system by elimination. Learners combine figures following set rules for positive and negative shapes. The...
CK-12 Foundation
Linear Systems with Addition and Subtraction: XYZ Tiles
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
CK-12 Foundation
Addition and Subtraction of Polynomials: Sliders
Slide the coefficients to determine sums of polynomials. The interactive contains sliders to change the coefficients of an addend in a polynomial addition problem. Pupils determine the coefficients of the addend to arrive at particular...
Curated OER
Leveled Problem Solving Solving Addition and Subtraction Equations
In this adding and subtracting equations practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
Noyce Foundation
Apple Farm Field Trip
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
Curated OER
Choose the Operation: Plus or minus (up to 100)
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
Illustrative Mathematics
Pick Two
Learning to break apart numbers into smaller pairs is a critical step young mathematicians take as they develop their number sense. To practice this skill, children are provided with sets of three numbers and are asked to pick the two...
Scholastic
Adding and Subtracting Ten
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson series begins with learners using ten-frames and hundreds charts to recognize patterns when adding and...
Illustrative Mathematics
The Napping House
How many people and animals can cram into a single bed? Find out with this cross-curricular math and language arts lesson. Following along with a reading of the children's book The Napping House by Audrey Wood, young mathematicians add...
Curated OER
Solve Addition and Subtraction Equations
For this solving addition and subtractions equations practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
Curated OER
Addition and Subtraction
In this addition and subtraction learning exercise, students find the missing numbers for the double digit addition and subtraction equations. Students solve 13 problems.
Curated OER
Addition And Subtraction 1-10
In this addition and subtraction of one through ten instructional activity, students problem solve and calculate the answers to thirty mathematical equations.
Illustrative Mathematics
What’s Missing?
Now you see them, now you don't! This fun peek-a-boo activity engages young mathematicians in developing their ability to compose and decompose numbers. After being presented with a series of counters, children close their eyes while the...
Curated OER
Number Bonds to 10: Word Problems
Young mathematicians work through five story problems that reinforce number bonds to 10. They will read each problems then see the associated addition or subtraction equation for each.
Curated OER
Three Digit Addition and Subtraction (C)
In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 49 3-digit equations.
Curated OER
Three Digit Addition and Subtraction (F)
In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 49 3-digit equations.
Curated OER
Three Digit Addition and Subtraction (N)
In this addition and subtraction learning exercise, learners improve their math skills by solving the 3-digit addition subtraction equations. Students solve 49 problems.
Curated OER
Three Digit Addition and Subtraction (L)
In this addition and subtraction learning exercise, students improve their math skills by solving the 3-digit addition subtraction equations. Students solve 49 problems.
Curated OER
One-Digit Addition and Subtraction No Regrouping (M)
In this addition and subtraction activity, students improve their math skills by solving the one digit addition and subtraction problems. Students do not regroup to solve the 45 equations and 2 word problems.
Curated OER
One-Digit Addition and Subtraction No Regrouping (K)
In this addition and subtraction learning exercise, students improve their math skills by solving the one digit addition and subtraction problems. Students do not regroup to solve the 45 equations and 2 word problems.
Curated OER
One-Digit Addition and Subtraction No Regrouping (I)
In this addition and subtraction worksheet, students improve their math skills by solving the one digit addition and subtraction problems. Students do not regroup to solve the 45 equations and 2 word problems.
Curated OER
One-Digit Addition and Subtraction No Regrouping (J)
In this addition and subtraction worksheet, students improve their math skills by solving the one digit addition and subtraction problems. Students do not regroup to solve the 45 equations and 2 word problems.
Curated OER
Two-Digit Addition and Subtraction
In this addition and subtraction worksheet, students enhance their addition skills by adding or subtracting the 2-digit equations. Students solve 49 problems.