Shmoop University
Shmoop: Fractions & Decimals: Adding and Subtractions Fractions
The mathematics resource explores adding and subtraction fractions. Students examine the topics through class notes and examples. Practice problems with solutions are available to check for comprehension of the concepts.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Subtraction Using Front End Estimation
[Free Registration/Login may be required to access all resource tools.] Estimate decimal differences using front-end estimation
Disfruta Las Matematicas
Disfruta Las Matematicas: Hojas De Ejercicios De Decimales
This site contains many worksheets dealing with decimals and operation with decimals. Each worksheet has many variations. You can see them on the screen and print them with or without the answers.
Teaching Treasures Publications
Teaching Treasures: Year Eight Timed Mental Math
This resource provides an interactive worksheet with just ten problems as an independent practice or a quick assessment.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Money Using Words
[Free Registration/Login may be required to access all resource tools.] The video walks you through an example of pulling out key words to know what operation to use when working with money word problems. The video models converting...
AAA Math
Aaa Math: Aaa Math Lessons
AAA Math's interactive tutorials and lessons assist students grades K-8 improve their understanding of a wide range of arithmetic topics. Students are provided with immediate feedback as they complete the "Learn," "Practice," and "Play"...
Other
Smart Math Worksheets: Math Worksheets
Cover a great deal of content with these downloadable worksheets. Topics include fractions, division, addition, numeration, geometry, subtraction, multiplication, integers, decimals and algebra.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Addition
[Free Registration/Login may be required to access all resource tools.] Add decimals with and without rounding
Teaching Treasures Publications
Teaching Treasures: Year Eight Timed Mental Math
Improve your computation skills using this timed interactive worksheet.
CK-12 Foundation
Ck 12: Math Grade 2
Browse resources related to second-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
Illustrative Mathematics
Illustrative Mathematics: 4.nbt What's My Number?
The purpose of this task is for students to reason about base-ten numbers on the number line in a way that will require them to use what they know about place value. Students first represent addition and subtraction on the number line in...