Curated OER
More Addition in Your Head- Mental Math
In this addition mental math learning exercise, students answer 12 questions by doing addition in their heads. They complete 8 more questions by adding after reading the problems which include key words such as increase, altogether,...
Maths Blog
Adding/Subtracting Whole Numbers in Your Head
Exercise those mental math muscles! This worksheet contains 10 addition and 10 subtraction problems which require learners to compute sums or differences in their heads. A quick review at the top of the page provides a strategy based on...
Curated OER
Non Calculator Math Quiz
Here is a quiz which does not allow calculators. Kids solve a variety of problems that range from addition and subtraction of decimal numbers to probability and perimeter. There are 24 problems to solve. As stated on the resource, this...
Curated OER
Four Fundamentals of Addition First Graders Should Know By June
Send your first graders on to second grade confident in their basic addition skills!
Curated OER
Mental Math: 5 a Day
This is a really cool math resource! There are nineteen different slides containing five math problems each. They are intended to be used as daily math warm ups and address skills such as, addition, problem solving, missing addends, word...
Curated OER
Mental Math Counts
Students use mental math. They describe reasonable and unreasonable sums and differences. Students use mental math to find the sums and differences of addition and subtraction facts at random. They solve addition and subtraction facts...
Curated OER
Mentally Add and Subtract 10 or 100
Here are some number lines that need to be completed. There are two number sequences, one to test addition skills and the other for subtraction. Both sequences include counting by 10, but the subtracting question has scholars count...
Curated OER
Mentally Add and Subtract 10 or 100
Don't let the title of this one fool you; scholars skip count only by 10 in this number sequence worksheet. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two addition...
Curated OER
Mental Maths
In this mental math practice worksheet, students fill in the 10 blanks as the count backwards and forward. Students also solve 20 addition problems.
Curated OER
Mental Math
In this mental math worksheet, students try to solve problems without using a pencil and paper. Students master 12 single digit problems and 4 double digit problems.
Curated OER
Mental Math Methods
In this mental math worksheet, students use mental math methods to solve problems. Students complete 1 addition, 1 multiplication, and 1 subtraction problem using these methods.
Illustrative Mathematics
Building toward fluency
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
Curriculum Corner
Bugs and Flowers Math and Literacy Centers
The sun shines, flowers bloom, and bugs fly—it must be Spring! Add a cheerful theme of bugs and flowers to math and literacy centers. Scholars take part in an assortment of activities designed to reinforce concepts such as identifying...
Curated OER
Mental Math
In this mental math worksheet, students complete addition, subtraction, and multiplication problems using mental math strategies. Students complete 8 problems.
Curated OER
Mentally Add 3 Digit Numbers
In this addition worksheet, students are shown how to add two 3 digit numbers in your head mentally. There are 18 problems for the students to try to work in their head.
Curated OER
What Must Be Added?- Mental Math
In this mental math worksheet, 4th graders determine what needs to be added to each number to make the given sum using mental math. They work with multiples of 100 and 1000.
Curated OER
Adding Up
Sail through the land of three addends with this nautical-themed addition learning exercise. Scholars begin by using mental math to add seven sets of three numbers located on sailboats. Next, they apply this concept to eight horizontally...
Curated OER
Grandpa's Chocolates
It's fun playing a game of "Guess What's in the Jacket Pocket?" Students read the question using the concept of doubles using mental math. They then share their solutions with the class.
Curated OER
Mentally Add and Subtract 10 or 100
Find the missing digits in these number sequences. Each of the ten has one missing number and scholars must figure out what it is. Here's the pattern: all of these sequences involve counting by 10s. Learners add or subtract 10 to...
Curated OER
Basic Addition Practice
Here is a simple presentation which will give young mathematicians practice in adding numbers together. The problems are quite simple, but this would be a good way to encourage your charges to utilize mental math.
Curated OER
10 More or 10 Less?
Take a rocket to the stars with using a math instructional activity. Here, four sets of alien saucers, moons, rockets, and stars prompt young learners to match numbers with one more or ten more. Color the pictures for extra fun when...
DK Publishing
Mentally Adding and Subtracting
If you're looking for basic practice problems for youngsters learning addition and subtraction skills, look no further! Scholars solve 30 equations by filling in a missing addend, subtrahend, or minuend in these horizontally-aligned...
Houghton Mifflin Harcourt
Unit 2 Math Vocabulary Cards (Grade 3)
A set of third grade math vocabulary cards include topics that range from addition properties to terms like estimate and fact family. Each sheet has two cards on it. The top half is the word printed in bold text, while the bottom is the...
Oddrobo Software
King of Math: Full Game
All hail the king! Young mathematicians put their skills to the test as they strive to become the king of math.