In this addition worksheet, 2nd graders solve 11 three double-digit number addition math problems by lining up the numbers by tens and ones.

In this addition of decimals instructional activity, students add up to 4 digit numbers together with decimals in them. Students complete 12 problems.

In this adding decimals worksheet, students solve 10 problems in which decimal numbers to the hundredth place are added. Some problems will need to be rewritten vertically.

In this adding two-digit numbers worksheet, students, working with a partner, problem solve seven addition equations and word problems.

In this addition worksheet, learners add three to five numbers together with regrouping and match the answer to the letter in the problem to solve a riddle. Students solve 15 problems and answer 2 questions.

In this addition review worksheet, students practice adding 1-digit numbers to 2- digit numbers as they solve 3 addition problems.

In this problem solving learning exercise, 3rd graders solve 3 word problems in which they add or subtract with three digit numbers. They write an explanation of how they solved the problem.

In this adding more than two numbers worksheet, students, working with a partner, calculate the answers to eleven addition equations.

In this subtracting greater numbers worksheet, students, with a partner, problem solve and calculate the answers to six addition equations.