Joining (Addition) - Result Unknown

In this addition of three numbers with various digits worksheet, students problem solve and calculate the answers to forty-nine addition equations.

Here's an addition drill for scholars who are already comfortable with regrouping. There are 30 horizontally-aligned problems here, each with two 2-digit addends. Mathematicians use three examples as reference as they solve each of...

One hundred problems provide practice adding 3, four-digit numbers. The answer key is included.

This worksheet provides 100 problems that require adding four-digit and three-digit numbers. The answer key is included.

Pattern recognition is an essential step in the development of young mathematicians fluency with the four basic operations. This simple skills practice worksheet asks children identify and complete three different...

Addition and subtraction are essential skills for all young mathematicians. Explain the step-by-step process with respect to place value using these real-world examples. Focus is on numbers in the tens, hundreds, and thousands, making...

Students understand that a three sisters garden is comprised of corn, beans and squash. In this three sisters garden lesson, students understand that Native Americans planted three sisters gardens and grow a three sisters garden....

Sal subtracts 35-8 with regrouping. Includes a video, transcript, and question and answer section. [3:10]

Second and third graders practice subtracting problems with one digit, two digit, and three digit numbers. They complete 80 subtraction problems.

Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...