Groups explore sets of 10 items in two varieties (i.e. 3 white buttons and 7 black ones, or 5 bears and 5 bunnies). They brainstorm about their objects, write math sentences to represent what they have, and report their discoveries...

Here is a fabulous lesson on subtracting decimals with different numbers of decimal places. There are teacher-led activities for learners to engage in, including, modeling decimal subtraction through decimal squares, looking at place...

In this finding the differences learning exercise, students subtract three-digit numbers with and without regrouping. Students solve 20 problems.

In this math literacy worksheet, students practice solving problems while focusing on the skill of subtraction with the challenge of regrouping.

In this subtraction practice worksheet, students use their math skills to solve 12 problems that require them to subtract 2-digit numbers from 2-digit numbers with regrouping.

In this online interactive subtraction with regrouping worksheet, students solve 18 problems that require them to subtract 3 digit numbers from 3 digit numbers with regrouping.

In this math activity, students answer 303 problems including addition of numbers with decimal points, multiplication word problems, and rounding numbers to the nearest one thousand.

In this addition worksheet, students practice adding with regrouping. Students solve twenty 3-digit addition problems by using regrouping.

In this finding the sums worksheet, students use a number line to add two-digit numbers without regrouping. Students solve 20 problems.

In this two-digit addition and subtraction worksheet, students solve with mixed regrouping and no regrouping. Students solve 49 problems.

In this adding and subtracting thee-digit numbers worksheet, students solve with mixed regrouping and no regrouping. Students solve 49 problems.

In this adding and subtracting three-digit numbers worksheet, students solve with mixed regrouping and no regrouping. Students solve 49 problems.

In this math worksheet, 3rd graders focus on two digit addition. Students complete twenty-five problems with no regrouping.

In this adding two-digit numbers worksheet, students add and regroup to find the sums and follow the leprechaun's path to find his gold. Students solve 38 problems.

In this addition and subtraction worksheet, students add and subtract two-digit and three-digit numbers with regrouping. Students solve ten problems.

In this addition of three-digit numbers activity, students add with regrouping and put only the Easter eggs with sums greater than one thousand one into the basket. Students solve 20 problems.

In this finding the sums worksheet, learners add three-digit plus three-digit numbers with no regrouping. Students solve 20 problems.

In this math worksheet, learners solve 49 problems in which 2, 3 or 4 digit numbers are added with regrouping. Problems are in vertical format.

In this math learning exercise, 1st graders focus on single digit addition with the numbers one through ten. Students complete twenty-five problems with no regrouping.

In this math activity, 1st graders master single digit addition. Students complete fifteen problems with no regrouping.

In this addition worksheet, 3rd graders complete 30 problems in which they add a single digit number to a two digit number using regrouping as needed. They enter their answers in the boxes and submit them on-line

In this finding the sum learning exercise, students add two-digit plus two digit numbers in ones and tens place values with regrouping. Students solve 12 problems.

In this finding of the products with a regrouping activity, 5th graders multiply three-digit decimals by the two, three, four, and five numerals. Students solve 20 problems.

Young mathematicians solve 100 problems that require adding three-digit and two-digit numbers. Regrouping is required. The answer key is provided.