Curated OER
Add and Subtract Whole Hundreds
In this addition and subtraction activity, students add and subtract whole hundred numbers. Students complete 5 problems on this activity.
Curated OER
Checking Subtraction with Addition and Writing Number Sentences
In this math worksheet, learners complete 12 subtraction problems which they check with addition. They solve 6 short mixed word problems and write a number sentence for each while solving it.
Curated OER
Number Line Addition
In this addition instructional activity, 2nd graders add single digit numbers. Students complete 12 horizontal problems using the number line provided at the top of the page.
Curated OER
Math – Word Problems : Up to 2-digits Without Regrouping
In this addition and subtraction practice learning exercise, students solve 6 word problems that require them to add and subtract using 2-digit numbers.
Curated OER
Math - Addition 1 to 10
In this addition worksheet, students add one digit numbers to each other. Students complete 6 problems adding numbers 1 through 10 with the help of pictures.
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Subtraction - Numbers to 19 ( 3 of 3)
In this subtraction worksheet, students find the differences in 30 vertical problems which use numbers up to nineteen. They do not regroup as they solve the problems in which they subtract a single digit number from a two digit number.
Curated OER
Order of Operations - Add/Subtract
In this order of operations worksheet, middle schoolers complete addition and subtraction problems with parenthesis and 3 and 4 digit numbers. Students complete 9 problems.
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Three+Four=Seven
For this math cryptogram worksheet, students add the words three and four to get the word seven. Each letter stands for a different number.
Curated OER
Addition With Integers
in this math learning exercise, students add the numbers with three digits and the signs are either negative or positive for the integers.
Curated OER
Write the Equations
In this writing equations to problem solve learning exercise, students read the addition and subtraction problems, write the one-digit and two-digit equations, and solve without regrouping. Students solve 15 problems.
Curated OER
Codebreaker Math
Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...
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Mystery Math
Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...
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Addition Relay
Third graders, in pairs, use a bag of counters which can be dried beans, squares of papers, etc.
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Adding 1's and 2's
In this addition worksheet, students add either 1 or 2 to given numbers. A website reference for additional resources and answers is provided.
Curated OER
Adding 1's and 2's
In this addition worksheet, students add 1 or 2 to various numbers. A website reference for additional resources and answer key are provided.
Curated OER
Quiz: Large Sums
In this addition quiz activity, students complete a quiz in which they add numbers between 100 and 100,000. There are 10 problems on the activity and each requires adding 3 different numbers. A grading scale is included at the bottom of...
Curated OER
Using a Hundreds Chart
Youngsters participate in three activities using the hundreds chart. They will choose numbers to add up to one hundred. Whoever gets the most combinations wins. Two variations of the game are supplied.
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Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
Curated OER
Easter Eggs in a Basket - Sums to 1998 (D)
In this 3 digit addition instructional activity, students add the 3 digit addition equations and find the Easter eggs with sums greater than 998. Students draw a line from the Easter eggs with those sums to the basket.
Curated OER
Mental Math: Adding 10s
To develop mental math skills for adding 10s, learners read an example, solve one carefully scaffolded problem, and then complete 6 more independently. Pictures of 10-rods make the connection between sets of 10 and the corresponding...
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Adding Doubles Plus One (B)
In this addition worksheet, students find the sums of single digit doubles plus one. Students solve 21 problems associated with adding doubles.
Curated OER
Hidden Pictures
Third graders practice their multi-digit addition math skills by uncovering a hidden picture as they correctly answer math problems utilizing the A+ Math Web site "Hidden Pictures Game".
Education World
Counting with Marshmallows and Licorice
Here's a tasty lesson on place value! Learners practice counting by ones and tens using mini-marshmallows and licorice sticks. They count and add the mini-marshmallows, and use the licorice sticks to represents tens.
Curated OER
Let's Shop
Upper graders add and subtract decimals, using concrete objects and story problems. Note: The Concentration Cards and Homework assignment link at the bottom of the plan doesn't work.
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