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Illustrative Mathematics
Find the Missing Number
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
Savvas Learning
Missing Numbers
Young learners answer six fill in the blank questions where they determine the missing addends for four addition word problems. They fill in the missing numbers on a problem that involves both addition and subtraction. Lastly, they...
Illustrative Mathematics
What’s Missing?
Now you see them, now you don't! This fun peek-a-boo activity engages young mathematicians in developing their ability to compose and decompose numbers. After being presented with a series of counters, children close their eyes while the...
K20 LEARN
Building Numbers: Addition And Subtraction Up To 10
Animals on Board! Stuart J. Murphy introduces scholars to composed numbers in preparation for writing and drawing true or false number sentences. A game of Bear in the Cave challenges pupils to locate a missing addend. Sorting...
Curated OER
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.
Key Stage Fun
Squeebles Addition & Subtraction
The math monster is at it again, this time stealing all the cars and drivers that were to take part in the cart race. If their addition and subtraction facts are up to the challenge, young mathematicians can win the drivers' freedom...
Curriculum Corner
Second Grade Summer Math Practice Book
Stop the summer lag with a set of second grade Common Core based math practice sheets. Learners fill in hundreds charts with missing numbers up to 1,000. They practice writing numbers in standard, expanded, and word form. Children also...
CK-12 Foundation
Add and Subtract Three Mixed Numbers: Walking to School
Mixed numbers are the focus of a five-question interactive. Scholars move fraction pieces into strips and equations to find solutions. Questions challenge participants with multiple-choice, a true or false, and one discussion.
THUP Games
Monkey Math School Sunshine
Hang out at the beach and listen to some relaxing tunes, all while developing basic math skills. An endless source of fun and learning for young children!
Math Salamanders Ltd.
Addition - Up To 20 Sheet 6
In this addition instructional activity, learners use their knowledge of addition facts to fill in the missing numbers in two addition charts.
Curated OER
Making Math More Fun
Trick young mathematicians into practicing their basic arithmetic with this extensive collection of fun math games. Whether you're teaching addition, subtraction, multiplication, division, place value, or even fractions, there is a...
Curated OER
The Missing Monkey Mystery
Second graders explore number values by completing number sentences. In this math functions instructional activity, 2nd graders identify whole numbers by using a visual aide and practice filling in the blank in number sentences. Students...
Curated OER
Math Lesson Plan : Finger Counting
Create a class of mathematics master. They practice addition to ten until they have mastered the skill. They use their hands to add numbers and eventually find the missing addend to make a sum of 10. They also subtract a single digit...
Math Salamanders Ltd.
Addition - Up to 20 Sheet 5
In this addition worksheet, learners complete missing addend problems by plugging in numbers one to 20. Students complete 40 problems.
Curated OER
Fractions of A Pizza
Students view a large illustration of a pizza with parts of velcro. In this addition and subtraction of fractions activity, students solve problems based on the pieces missing from the pizza. Students take a fraction quiz. Order a...
BBC
Simple Addition and Subtraction
Here is a wonderful lesson plan designed for young mathematicians. In it, they employ simple addition and subtraction strategies in order to solve word problems. There are some excellent activity sheets embedded in the plan to make the...
CK-12 Foundation
Decimal Addition: Adding Little Pieces
A five-question interactive test scholars' knowledge of adding and subtracting decimals. A tool aids in problem-solving with movable parts that reveal addends and sums. Question types include one discussion, fill and in the blank, and...
Curated OER
Balancing Number Sentences to Introduce Missing Values
Learners balance number sentences to learn about missing values. In this balanced equations lesson, students use the word problem to study missing values. Learners watch a video about the topic and play two games about balancing...
Math Salamanders Ltd.
Addition—Up to 12 Sheet 5
In this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
Math Salamanders Ltd.
Addition - Up to 12 Sheet 7
In this worksheet, students practice their addition facts by filling in the missing numbers in each box.
Math Mammoth
Multiply By Whole Tens And Hundreds 1
In this multiply by whole tens and hundreds worksheet, students problem solve and calculate fifty seven equations either by writing the additions as multiplications, solving and comparing and/or filling in the missing factors.
Curated OER
Addition - Adding on Ones Sheet 2
In this missing addend worksheet, students fill in missing addends to arrive at given sums. All numbers are 2-digit. A reference website is given for additional activities.
Curated OER
Understanding 10: Backwards and Forwards
Help your young mathematicians completely master 10 by practicing one-to-one correspondence, number recognition, and recording numbers displayed. They make 10 with groups of two-different colored cubes and color in 10-frames to show how...
Curated OER
Math computation
The lesson says it is intended for 4th grade but it is suitable for grades 1-3 as well. The class discusses what it means to add, the commutative property of addition, and mathematical reasoning. This is an exercise in number sense,...