CK-12 Foundation
Ck 12: Elem Math: Filling in the Missing or Sign Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video works through a 3-digit addition problem to determine if the correct operation for the number sentence is addition or subtraction. The video is followed by...
CK-12 Foundation
Ck 12: Elem Math: Filling in the Missing or Sign
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine if a number sentence is addition or subtraction by testing the operation to determine which reveals the correct solution. The...
CK-12 Foundation
Ck 12: Elem Math: Filling in the Missing or Sign Numbers to 100
[Free Registration/Login may be required to access all resource tools.] The video works through 2-digit addition and subtraction problems to determine which number sentence coincides with the given value. The video is followed by...
SMART Technologies
Smart: Colorful Painter Fact Families
Find the missing numbers in the fact family number sentences.
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine what number sentence is missing in the fact family.
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence when adding and subtracting 3-digit numbers by using fact families.
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 100
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence by using fact families.
AAA Math
Aaa Math: Adding Two Digit Numbers Mentally
Read these two strategies for adding two-digit numbers in your head. Then try out the one you like better by playing the game. Running totals of your correct and incorrect answers as well as a percent score of your correct answers will...
AAA Math
Aaa Math: Adding Five Digit Numbers
AAAMath.com provides an online game to practice addition with five digit numbers. The game will give you addition problems and keep track of your correct and incorrect answers. It will also give you a percent score for the correct answers!
AAA Math
Aaa Math: Adding Six Digit Numbers
This lesson has a game and explanation of addition with six digit numbers. The game will keep running totals of your correct and incorrect answers. It will also give a percent score of the correct answers for you to see.
Better Lesson
Better Lesson: Smiley Faces and Up
Automaticity with patterns that allow students to easily manipulate larger numbers is the aim of this activity.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Sums and Differences to 10
A guide to support parents as they work with their students in sums and differences to 10.
ClassFlow
Class Flow: Magic Math Squares
[Free Registration/Login Required] Students complete number sentences by inserting numbers in the correct order to arrive at a predetermined answer.
Scholastic
Scholastic: Study Jams! Math: Multiplication and Division : Distributive Property
Just like addition, multiplication has properties too. The distributive property shows that you can write a number sentence in different ways and still get the same result. Students watch an interactive tutorial, explore common mistakes...
AAA Math
Aaa Math: Adding Hundreds
Practice adding hundreds with a game that keeps running totals of your correct and incorrect answers, as well as a percent score of your correct answers.
AAA Math
Aaa Math: Adding Two Digit Numbers
This lesson has an explanation for adding two-digit numbers using paper and pencil. There is also a game to practice your skills. The game gives you a percent score of your correct answers, as well as running totals of your correct and...
AAA Math
Aaa Math: Front End Estimation
Front-end estimation is explained and demonstrated with an online game at this AAA Math lesson.
Alabama Learning Exchange
Alex: Camp Add 'Em Up Iii
Camp Add 'Em Up is a series of lessons for first grade students. Students will use prior knowledge of friendly numbers (two number combinations that make a "10") and "adding on" as they master the ability to add three numbers. In this...
AAA Math
Aaa Math: Subtraction Equations: 1 Digit
This site describes how to solve subtraction equations and provides an opportunity for students to practice the skill through self-checking exercises and games.
ClassFlow
Class Flow: Wintertime Math
[Free Registration/Login Required] In this lesson kindergarten students will explore beginning mathematics by ordering numbers to 30, recognizing sets, recalling number words to ten and matching simple addition sentences to snowflake...
ReadWriteThink
Read Write Think: Using Thieves to Preview Nonfiction Texts
Contains plans for three lessons that introduce a nonfiction prereading strategy with the acronym THIEVES, which stands for Title, Headings, Introduction, Every first sentence, Visuals and vocabulary, End Questions, and Summary. In...
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...