Practice solving word problems with addition and subtraction. These questions are comparison problems including difference unknown, smaller value unknown, and bigger value unknown. Numbers used are 100 or less.

The purpose of this task is for students to add, subtract, multiply, and divide decimal numbers in a real-world context. The weekly income earned by each person in the task is the median weekly income for their education level, but they...

Practice solving word problems with addition and subtraction. These questions are start unknown problems including add to and take from problems. Numbers used are 100 or less.

[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to subtract decimal numbers from the tens place to the thousandths decimal place. [0:47]

Sixth graders are presented with a completed multiplication equation and are asked to use it to find the answers to seven other equations. To do this, they must use their reasoning and estimation skills. Aligns with 6.NS.B.3.

Second graders increase their understanding of place value by manipulating larger numbers.

Help the alien spaceship move cows into corrals by counting, adding, and subtracting. This activity helps children learn grouping, tally marks, and place value.

This lesson explains how to add decimals of the tenths place value. Gives practice and games to work on this skill.

Practice adding and subtracting numbers like 54 and 37 using a number line. Numbers used in these problems are all less than 100.

Practice solving problems like 24 + 45.

Practice solving problems like 34+1 and 34+10.

Add two numbers that are either whole numbers or written to the tenths place value. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Generate worksheets for math problems ranging from simple addition problems to place value with expanded notation for free. Your choice of font, font size, color and landscape when printing.

The purpose of this task is to support students in developing an understanding of a place value strategy for adding numbers. By using a representation to visualize the abstract notation, students will make sense of the strategy, adding...

A set of seven short tutorials on addition. Begins with a basic introduction to how addition works, and covers topics such as using a number line, place value, and regrouping.

Practice adding two-digit numbers. All numbers in these problems are 100 or less.

Practice adding and subtracting to solve word problems. These questions are result unknown or change unknown problems. Numbers used are 100 or less.

Practice adding and subtracting using the number line. Numbers used are 100 or less.

Practice solving problems like 34+5 and 34+50.

This website explains and defines adding whole numbers and decimals. Content explores addition with regrouping and how to align numbers in a written calculation. There are even practice problems at the end of the lesson.

Students learn to add and subtract numbers Using the calculator. They investigate patterns in place value and explore relationships between numbers on the hundred chart.

In this lesson plan students use strategies based on place value to add and subtract within 100.

This lesson plan has students exploring was to add and subtract numbers with multi-digits and place value.

Using base-ten materials and place-value skills, 2nd graders gain a better understanding of how to add and subtract numbers.