CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains two addition problems one with regrouping and the other without regrouping.
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...
ClassFlow
Class Flow: Close to 100
[Free Registration/Login Required] This flipchart is a game to help students learn how to add two numbers together and get as close to 100 as they can.
Texas Instruments
Texas Instruments: 100 or Bust
In this activity, students explore the operations of addition and subtraction. They use estimation, a place value chart, and a calculator to place seven randomly generated numbers in the ones and tens position in a place-value chart to...
ClassFlow
Class Flow: Close to 100
[Free Registration/Login Required] This math game uses numeral cards and players try to make sums as close to 100 as possible. This flipchart introduces the game and can be used for the teacher to play against the class using a set of...
Mangahigh
Mangahigh: Number: Number Pairs Up to 100
Students explore the concept of number pairs by working through an online tutorial and then attempting a ten question quiz that increases in difficulty as questions are answered correctly.
CommonLit
Common Lit: "Woman Who Helped Anne Frank Dies at 100 by Teri Schultz, Npr
CommonLit.org is a wonderful resource to use in a Language Arts classroom. Each story or article is accompanied by guided reading questions, assessment questions, and discussion questions. In addition, students can click on words to see...
Khan Academy
Khan Academy: Addition Using Groups of 10 and 100
In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...
Khan Academy
Khan Academy: Add and Subtract Within 100 Word Problems 2
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. Students receive immediate...
Khan Academy
Khan Academy: Add and Subtract Within 100 Word Problems 3
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. Students receive immediate feedback and have the opportunity...
Khan Academy
Khan Academy: Challenging Add and Subtract Word Problems (Within 100)
Practice solving more challenging addition and subtraction word problems with "more" and "fewer". Multi-step problems are also included. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try...
Khan Academy
Khan Academy: Add and Subtract Within 100 Word Problems 1
Practice adding and subtracting to solve word problems. These questions are result unknown or change unknown problems. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try questions...
Khan Academy
Khan Academy: Find the Missing Number (Add and Subtract Within 100)
Practice solving problems like "___ - 45 = 27" where you have to figure out the missing value in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Cool Math
Coolmath: Coolmath4kids: Adding Numbers Within 100
A step-by-step tutorial showing how to add 2-digit numbers in place value columns without regrouping. Includes exercises to try. CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000
Cool Math
Coolmath: Coolmath4kids: Adding Numbers Within 100 With Regrouping
Demonstrates how to regroup when adding 2-digit numbers.
Better Lesson
Better Lesson: Crossing Over 100
Second graders often become confused as they count from one decade to the next. In order to become fluent with operations in addition and subtraction, 2nd graders need to be able to move across decades. This lesson includes a detailed...
Khan Academy
Khan Academy: Select Strategies for Adding Within 100
Practice telling which strategies work for adding two numbers within 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
ReadWriteThink
Read Write Think: Living the Dream 100 Acts of Kindness
Contains plans for mini-lessons that ask students to put the dream of Dr. Martin Luther King, Jr. in action by performing 100 acts of kindness. In addition to objectives and standards, this instructional plan contains links to sites used...
University of Texas
Inside Mathematics: Peanuts and Ducks [Pdf]
This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction. A student must be fluent with addition and subtraction within 100 and understand the relationship between addition and...
Khan Academy
Khan Academy: Add Fractions (Denominators 10 & 100)
Practice adding fractions that have denominators of 10 and 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas Instruments
Texas Instruments: Names for 100
Students will use the calculator to carry out operations of addition, subtraction, division, and multiplication on integers, fractions, and decimals to find mathematical expressions that equal 100.
Khan Academy
Khan Academy: Add Within 100
Practice adding two-digit numbers. All numbers in these problems are 100 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Alabama Learning Exchange
Alex: 100 More Hungry Ants
Students will investigate what happens to the number of ants at a picinc when 100 more ants arrive at the picnic. They will explore this concept using a slide presentation followed by a partner game. This lesson plan was created by...
CK-12 Foundation
Ck 12: Elem Math: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Students attempt practice problems on solving basic inequalities with addition and subtraction.