University of Cambridge
University of Cambridge: Nrich: Adding Plus
On this one page website sharpen your logic and addition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Super Value Codes
On this one page website sharpen your logic and addition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: One Big Triangle
On this one page website sharpen your logic and addition facts skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: 1, 2, 3 Magic Square
Sharpen your logic and basic addition facts skills while working on this challenge. Solution.
Oswego City School District
Regents Exam Prep Center: Order of Operations and Evaluating Expressions
Please excuse my dear Aunt Sally. This sentence takes on greater meaning when students realize it will assist them in remembering the all-important order of mathematical operations. A lesson plan, several interactive practice pages, and...
National Council of Teachers of Mathematics
The Math Forum: K 12 Math Problems, Puzzles, Tips & Tricks
At this site us these tips & tricks to help students become better mental mathematicians.
Quia
Quia: Addition Concentration Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a concentration game type format.
Quia
Quia: Addition Concentration Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a concentration game type format.
Quia
Quia: Addition Flashcards Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a flashcard type format.
Ministry of Education and Employment of Spain
Red Escolar: Problemas De Holmes 2002
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Problemas De Holmes 2006
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Problemas De Holmes 2003
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Problemas De Holmes 2004
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
ABCya
Ab Cya: Mystic Numbers
Enter the Mystical Temple and discover hidden treasure by placing the number orbs in the correct spots on the pedestal. Great addition skills are essential in this exciting math puzzle game. Give it a try!