Students explore adding 2-digit numbers. For this math lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.

In this addition activity, students complete a set of 12 problems by adding three- and four-digit numbers. A reference website is provided for additional activities.

In this addition worksheet, students add two digit to two digit numbers for twenty-five problems. Regrouping is used for several of the problems. Answers are included with this worksheet.

In this subtraction instructional activity, students subtract one through three digit numbers from each other. Students complete 40 subtraction problems.

In this addition and subtraction mixed operations worksheet, students solve 45 problems that require them to add and subtract using single digit numbers. Students also solve 2 story problems.

For this addition and subtraction mixed operations worksheet, students solve 49 problems that require them to add and subtract using single digit numbers.

In this addition and subtraction mixed operations worksheet, students solve 49 problems that require them to add and subtract using single digit numbers.

In this addition and subtraction mixed operations worksheet, students solve 49 problems that require them to add and subtract using single digit numbers.

In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 1-digit numbers.

In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 1-digit numbers.

In this addition and subtraction practice worksheet, students find sums and differences of 49 problems by adding and subtracting 2-digit numbers with no regrouping.

In this problem solving worksheet, 4th graders practice adding single and multi-digit numbers together. Students solve 6 addition problems.

In this addition and subtraction practice worksheet, students find sums and differences of 49 problems by adding and subtracting 2-digit numbers with no regrouping.

In this addition and subtraction practice worksheet, students find sums and differences of 49 problems by adding and subtracting 2-digit numbers with no regrouping.

In this addition and subtraction practice worksheet, students solve 49 problems that require them to add or subtract with 2-digit numbers.

In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 2-digit problems. Students solve 49 problems.

In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 4-digit numbers.

In this single digit addition worksheet, students complete a set of 18 problems, adding 2-single digit numbers together. A reference web site is given for additional activities.

In this multiple digit addition practice worksheet, learners sharpen their math skills as they solve 15 problems that require them to add 4 or 5-digit numbers to 5-digit numbers.

In this addition practice worksheet, students solve 15 problems that require them to add 1, 2, or 3-digit numbers to 3-digit numbers.

For this addition practice worksheet, students solve 15 problems that require them to add 2 or 3-digit numbers to 3-digit numbers.

In this addition practice worksheet, students solve 15 problems that require them to add 1, 2, or 3-digit numbers to 3-digit numbers.

For this addition practice worksheet, students solve 15 problems that require them to add 2 or 3-digit numbers to 3-digit numbers.

For this addition practice worksheet, students solve 15 problems that require them to add 2 or 3-digit numbers to 3-digit numbers.