In 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.

In this addition with carrying worksheet, students solve 12 problems in which 2 and 3 digit numbers are added. There is carrying on the page.

In this addition and subtraction worksheet, students solve 49 problems in which two 3-digit numbers are added or subtracted. There will be regrouping.

In this addition and subtraction learning exercise, learners complete a total of 49 problems, adding or subtracting 3 digit numbers. Answers included on page 2.

In this addition worksheet, students mentally add 20 single digit numbers to 20 three digit numbers as fast as they can without working them out on paper. Students then add 5 additional single digit numbers to 5 three digit numbers and...

In this addition activity, learners complete 30 addition problems. The addition problems involve adding three digits to two digits.

In this addition practice instructional activity, students solve 15 problems that require them to add 3-digit numbers to 3-digit numbers.

In this addition worksheet, students use three digit addition and solve for missing addends. Students master 15 problems filling in the missing numerals for each.

The focus of this lesson is practice. Included are 14 worksheets each containing 10 simple single digit problems, where 3 digits are added together to find a sum. Problems are presented in both horizontal and vertical fashion. Note: This...

In this addition worksheet, students solve a total of 15 problems, adding 3 and 4-digit numbers together. Problems are accompanied by pictures of "cute" animals.

In this addition worksheet, students complete a total of 20 problems, adding one 3-digit number to another. All problems require regrouping. Answers are included on page 2.

In this addition worksheet, students complete a total of 20 problems, adding one 3-digit number to another. Answers are included on page 2.

Each of these addition equations involves two addends that are multiples of 10. Although there isn't any regrouping necessary, some of the sums are three-digit. The first 16 of these 28 equations are vertically oriented and the second 12...

Multiplying by 10 is simple, but do your scholars know the trick? They look at four examples; if you haven't learned this yet, see if they notice a pattern in these answers. They multiply 70 numbers by 10. Most are two-digit, but a few...

Show scholars that if they can add up two addends, they can also add up three. Review the examples together before letting scholars try these 25 addition problems, each with three double or single-digit addends. Two of these add up to...

Practice adding decimals by completing 26 practice problems. Scholars examine two examples before trying these on their own. They add two and three-digit numbers with decimals, regrouping when needed. Not all numbers have decimals, but...

In this patterns worksheet, high schoolers solve 4 short answer problems. Students find the pattern of adding the digits one through nine and extend that pattern to natural numbers with the same digit in every place. 

In this adding one-digit whole numbers activity, 1st graders solve 20 addition problems in vertical format with whole numbers from 1 to 10, answers included.

Those are some big addends! Challenge students to find the sum of 16 equations, each of which has at least three addends. They are adding, two, three, and four-digit numbers here, and regrouping is a given. Two example problems offer...

Have your class practice adding three single digit numbers using this resource. Learners can answer the thirty addition questions as part of a center activity or as a supplemental experience once they have finished the daily math work.

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

In this adding practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that require them to add three 2-digit numbers.

If you're in search of some basic addition drills, take a look at this for your second and third graders. There are 20 vertically aligned equations here, each with one three-digit addend and one...

Build mental math skills by teaching learners to double and half three-digit numbers. They start out by doubling one of seven double-digit numbers. Next, they discuss their strategy, and then practice doubling and halving 3-digit...