Students will be able to solve subtraction word problems using objects and write a numeral for the solution.
Students will be able to create their own number stories and represent them using one of the methods we have learned in this unit.
Students will be able to create their own number stories and represent them using one of the methods we have learned in this unit.
Students will be able to create their own number stories and represent them using one of the methods we have learned in this unit.
Subtraction problems can involve shapes, attributes and perimeter.
Solving equations supports algebraic thinking which is needed for high school and beyond.
Students will solve word problems to create their own subtraction number sentences. They will use known addition facts to solve subtraction problems. A detailed lesson plan, worksheet, and pictures/videos of the lesson being modeled are included.
Explore subtraction and addition but having student collect data from rolling objects. This lesson has students adding and subtracting numbers they collected using strategies used in class. Use the document and video found on this page to implement this lesson.
The purpose of this task is for students to find different pairs of numbers that sum to 4.
Demonstrates how to solve 6798 - 3359 by using place value to decompose and regroup the numbers. [3:45]
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Students use addition or subtraction to solve these types of word problems.
This word problem has 10 possible solutions.
The purpose of this task is for students to find different pairs of numbers that sum to 7.
A number of different ways to approach complex numbers and operations with them.
Rational expressions have never been so easy! Use this site to learn how to add and subtract them with ease and confidence. And common denominators? No Problem! Great practice problems are included to see how much you've learned.
This short video and interactive assessment activity is designed to teach second graders about mixed operations: selecting the correct sentence.
This short video and interactive assessment activity is designed to teach second graders about more and less (addition and subtraction).
This short video and interactive assessment activity is designed to teach third graders about word problems that compare values.
This short video and interactive assessment activity is designed to teach second graders about comparing with two-step addition and subtraction.
This sample chapter from Hurst's book Picturing Math is an excellent resource for using picture books and activities for learning computation.