Curated OER
Lesson Design Protocol: Add and Subtract
Addition and subtraction are studied in this math lesson. Upper graders add and subtract whole numbers up to 1,000 with and without regrouping.
Math Salamanders Ltd.
Addition Up to 20, Sheet 3
This activity focuses on adding numbers to sums of 20. Pupils complete a set of 24 problems by adding numbers to 20. A number line and reference website are given for additional activities.
National Security Agency
Borrowing from Our Neighbors
Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.
Curated OER
ABC It's as Easy as 1-2-3!
Help readers explore initial letter sounds. They will choose a letter of the alphabet and create a page for a classroom "ABC" book. They will write down various words that begin with their assigned letter and draw a picture to go in the...
Curated OER
Add Three Numbers
In this column addition worksheet, students solve 11 problems in which three two-digit numbers are added. There will be regrouping on this page.
Curated OER
Add Three Numbers Practice 11.4
In this column addition worksheet, students solve 13 problems in which three two-digit numbers are added. Students look for a ten or a double.
Curated OER
Adding 1- and 2-Digit Numbers (Regrouping)
This online learning exercise provides 30 practice problems in which learners add single- and double-digit numbers. The sums require regrouping, so even though the interactivity is catchy, no accommodation is made for the fact that...
Curated OER
Multiplication Grids: Double-Digit
Kids learn how to use the grid method to solve double by single-digit multiplication problems. They take each double-digit number into its tens and units, place it on the grid, add the multiplier, then solve the problem. There are two...
Curated OER
Study Buddies: Adding Three-Digit Numbers
In this math worksheet, students will work with a coach to solve a story problem in which they must add three-digit numbers. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Column Addition Money Three-Digits 2
In this finding the sums of money problems activity, students add three-digit problems with decimals and regrouping. Students solve 20 problems.
Curated OER
Addition Practice #4
In this math worksheet, students solve sixteen addition problems. In each problem, students add two different one-digit numbers.
Curated OER
Addition: Math 3
In this addition worksheet, students add one and two digit numbers to each other with and without regrouping. Students complete 30 addition problems.
Curated OER
Add and Subtract within 1000
There are some missing parts in these addition and subtraction problems. Scholars start by completing two number sentences, each involving all three-digit numbers. Then, they examine another number to determine the value of the tens...
Curated OER
Multiplication: One and Two Digit Numbers
In this multiplication worksheet, students multiply one digit numbers by two digit numbers and three digit numbers. Students complete 28 problems.
Curated OER
Addition With One and Two Digit Numbers
In this addition with one or two digits worksheet, 2nd graders complete 10 horizontal addition problems. They place the sums in the shape at the end of the equation.
Curated OER
One and Two digit addition
In this addition worksheet, students add one and two digit numbers together with and without regrouping. Students complete 6 addition problems.
Curated OER
Add Three
In this adding single digit numbers worksheet, students solve 15 problems that require them to add single digit numbers to the number 3.
Curated OER
Multiplication With Two Digits
Third graders multiply one and two digit problems, identify place value, and maneuver manipulatives to solve problems.
Curated OER
Addition: one and two digit numbers
In this addition worksheet, 2nd graders add one and two digit numbers together with the help of a number line. Students complete 19 problems.
Curated OER
Three Addend Addition 2
In this addition practice worksheet, students use their problem solving skills to solve 8 problems that require them to add multiple digit numbers. Each problem has 3 addends.
Curated OER
Column Addition practice 4.6
In this adding columns worksheet, learners add two-digit and three-digit numbers, use symbols to compare pairs of addition problems, and solve word problems. Students solve nineteen problems.
Curated OER
Adding Mixed Fractions (B)
Use this addition worksheet to have your learners add mixed numbers with one-digit and two-digit denominators. They solve 10 problems.
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 not before devising a...
Curated OER
Two Digit Addition and Subtraction (T)
In this two digit addition and subtraction worksheet, students add and subtract two digit numbers. Students complete 49 two digit addition and subtraction problems to find the sum.