Curated OER
Correcting Bad Data Using Parity Bits
In this parity bits activity, students read about pixels and data strings. Students are given 2 data strings that are corrupted by cosmic ray glitches and they identify the bad data and create a valid data string.
Curated OER
Long Division in Two Digits
In this math worksheet, students find the solutions to the problems for long division. The answers can be shown in the printable version.
Curated OER
Fun Math Worksheet: 1-Digit Addition
In this addition instructional activity, learners solve a total of 15 problems, adding two 1-digit numbers together. Problems are accompanied by "cute" animal pictures.
Curated OER
System of Equations-Elimination Using Multiplication
In this system of equations worksheet, learners solve 9 problems using the multiplication elimination method. Students are then asked to setup and solve 2 system of equations word problems using the elimination method.
Curated OER
Estimating Differences (Online Interactive)
In this estimating worksheet, learners solve 20 problems in which two or three digit numbers are subtracted after rounding. Students round each number and then give an estimated answer. This is an online interactive worksheet.
Math Learning Center
Addition Strategies
Help young mathematicians refer to simple addition strategies with a set of math posters. The pages feature ways to remember how to add zero to a number, how to determine if a number is odd or even, and making fast tens.
Houghton Mifflin Harcourt
Unit 4 Math Vocabulary Cards (Grade 3)
Bring a set of 19 math vocabulary cards to your third grade math class. Each sheet contains two cards. The top half has the vocabulary word printed in bold text, while the bottom half has the definition of the word. Card topics include...
Curated OER
Multiplying by 10
In this multiplying by 10 worksheet, youngters read about multiplying by 10 and review a 10's multiplication chart, then fill in the missing numbers in a multiply by 10 grid and complete multiplication problems.
Curated OER
The Math Lesson 7
In this addition and subtraction practice worksheet, students use their problem solving skills to solve 200 problems that require them to add and subtract single digit numbers.
Curated OER
How to Calculate Your Age by Chocolate
In this math puzzle worksheet, students follow detailed directions to find their age. They begin with the number of times per week they eat chocolate. Their final answer tells how much chocolate they want or eat as well as their age.
Curated OER
Magic Math Work
In this magic math work worksheet, learners follow the steps for 2 math puzzles where they pick a number, and perform some computations with it.
Curated OER
Math Webs #1- Addition
In this elementary math worksheet, 3rd graders complete 4 addition math webs by adding the number in the middle of the web to those that are placed around it in a circular graphic organizer. They work with single digit numbers that may...
Curated OER
Adding Ten Tiles I
Students practice this problem that needs a certain amount of experimentation (trial and error) to get any answer at all. In the process they practice their basic number facts. However, to get the complete set of answers Students need to...
Curated OER
Nick Six's Dart Game
In this math worksheet, students analyze a dartboard with scoring points marked for different areas. Students practice addition by adding up scores for 15 attempts at the dartboard.
For the Teachers
$1 Math
Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson. Using the coding formula listed, children learn to fluently estimate and calculate simple sums.
Curated OER
Add or Subtract (up to 50)
Do you add or subtract? It's up to your mathematicians as they fill in the symbol for 16 equations to make them true. The numbers in this section don't exceed 18. Next, learners answer six word problems by determining the missing addend...
Curated OER
Estimating Sums of Money
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Public Schools of North Carolina
Math Stars: A Problem-Solving Newsletter Grade 4
Fresh off the press, these math newsletters will challenge the problem solving skills of your young mathematicians. With an incredibly wide variety of questions covering the topics of arithmetic and geometry, these unique...
Noyce Foundation
Ducklings
The class gets their mean and median all in a row with an assessment task that uses a population of ducklings to work with data displays and measures of central tendency. Pupils create a frequency chart and calculate the mean and median....
Curated OER
Fourth of July Addition and Subtraction
What is Thomas Jefferson signing? Focus on American history with this cross-curricular math puzzle. Learners utilize addition and subtraction skills to solve the mystery of the Fourth of July. All numbers are 3-digit, and there are no...
Curated OER
Cotton Swab Skeletons
To truly teach through the arts means one must tackle both art and core content in one lesson. This quick activity does just that. Learners make skeletons out of cotton swabs in order to study relief sculpture and the skeletal system....
Curated OER
Think of a Number
For 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
Multiplication and Division Drills
In this multiplication worksheet, students complete multiplication problems including numbers up to 3 digits. Students complete 16 problems total.
Curated OER
Beginning Addition
Students examine the concept of addition by adding two one-digit numbers whose sum is less than ten. They count and add goldfish crackers together, chorally repeating each problem.
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