Curated OER
Word Problem Exchange
Students discuss elements of word problems: key words, data, computation clues, and unnecessary information and use the four steps of problem solving to find a solution and check for reasonableness.
Environmental Protection Agency (EPA)
The Case of the Mysterious Renters
Upper-elementary kids examine the water usage in their own home, then use that data to solve a case in which a landlady is trying to determine how many people are living in an apartment being rented. Combine math, scientific method, and...
Curated OER
Alternative Algorithms
Analyze algorithms for computing with rational numbers and develop fluency in their use with your math class. They work individually to solve the problems on the "Alternative Algorithms" sheet. Then, they analyze the appropriateness of...
Curated OER
Three-Digit Addition and Subtraction With Regrouping
Second graders access prior knowledge of addition and subtraction using two-digit numbers and calculate easily with them. In this three-digit addition lesson, 2nd graders learn to add and subtract three-digit numbers with and without...
Curated OER
Ten Pennies
Students play logic and strategy games with pennies. In this pennies worksheet, students play one game called 'From counting to arithmetic', and one called 'Counting and mental math'.
Curated OER
Smart Doubling
Second graders use mental math in calculations involving addition and subtraction. They study doubles facts to work out addition problems mentally using part and or whole reasoning.
Curated OER
Think of a Number
In this math worksheet, students engage in a mental math activity. Student think a number and follow several computations with that number and always come up with the answer 9. Students discuss why this happens.
Curated OER
4th Grade Math Practice
For this grade 4 math practice worksheet, 4th graders complete a set of 23 multiple choice questions related to a variety of 4th grade concepts. An answer key is included.
DK Publishing
Money Word Problems #2
Are you experiencing money problems? Here are some more! Young mathematicians practice their addition and subtraction skills with money values in these word problems and number sentences. Some of the 25 questions prompt scholars to...
Curated OER
Missing Addends
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the...
Curated OER
Basic Subtraction
In this elementary math worksheet, 3rd graders perform mental math and transfer the answers to the worksheet. This is ideal for the development of number sense.
Curated OER
Estimation 4: Sum and Difference
In this estimation worksheet, pupils read story problems, determine the correct operation, and mentally evaluate the problem by using compatible numbers or through the process of rounding. Students complete three multiple choice problems.
Curated OER
Standard Written Method For Subtraction
In this subtraction worksheet, students solve 9 subtraction problems involving double-digit numbers. Students put their answers below each problem.
Curated OER
Find A Difference By Counting Up
In this subtraction worksheet, students solve 11 problems in which a single digit is subtracted from a four digit number. Students do this mentally by taking from the whole thousands and then counting up or by counting back.
Curated OER
Counting and Calculating
In this math worksheet, students follow the basic activities that are shown in the planning guide written for the teacher. The plan is written in the form of a unit.
Curated OER
Standard Written Method for Subtraction With Zeros
In this finding the differences learning exercise, students read the steps to solving subtraction problems with zeros in the ones place, and subtract two-digit numbers. Students solve 12 problems.
Curated OER
Fractions and Fact Families: Jump Kangaroo Jump!
Second graders practice with fractions and fact families. In this fractions and fact families lesson, 2nd graders participate in a series of activities to assist them with understanding fractions. Activities include graphing,...
Curated OER
What is Less? 1-10 Subtraction Worksheet
In this subtraction worksheet, students count the items that are pictured and count backward by the amount indicated in each problem. They complete 7 problems by answering the question, "What is __ less?"
Curated OER
Mathematics Lesson Plan
Second graders study subtraction facts. In this mathematics lesson, 2nd graders discuss how to solve two digit subtraction problems. Students recognize that there are many different methods or strategies one can use such as using...
Curated OER
Math Jeopardy: Basic Skills
Students play a PowerPoint activity to be used as a review of basic skills for order of operations, and the operations of addition, subtraction, multiplication, and division for whole numbers, some fractional numbers and integers....
Curated OER
Life is Full of Problems
Pupils use the problem solving strategy of guess and check to investigate math word problems. They determine which problem solving strategy or strategies would work best in problem situations.
Curated OER
Calculating Change
Before beginning this money math activity, discuss with scholars why calculating change is an important life skill. They examine the prices for fruit on a snack menu and observe three customer scenarios. For each one, scholars determine...
101 Questions
Trashketball
Take a shot using a lesson on volume! Young learners watch a video showing a trashcan filling with paper balls. The task is to calculate the number of paper balls that will fit in the can. Pupils use volume calculations to make a...
Curated OER
Estimating Differences of Money
When it comes to money math, show scholars that estimation is their best friend. They round money values to the closest dollar, 10 dollar, and 100 dollar increments, solving 19 addition and subtraction problems with approximate answers....