Curated OER
St. Patrick's Day Missing Digits (G)
In this St. Patrick's Day missing digits worksheet, students figure out the missing digits in twenty-two addition, subtraction and multiplication equations.
Curated OER
Missing Addend Worksheet in Column Form
In this math instructional activity, learners solve 24 problems in which there is a missing addend. Students fill in the blank. The problems are 3 digit addition with carrying.
Curated OER
Fill in the Missing Numbers
For this math worksheet, students learn number sequencing by filling in the missing numbers in 8 problems. All numbers are below 10.
Curated OER
Patterns Based On Addition
In this on-line math worksheet, 3rd graders complete 10 multiple choice questions where they find the missing number to a pattern by using addition. Students can check their answers at the end of the worksheet.
Curated OER
Missing Numbers: 1 to 20
In this missing numbers worksheet, students fill in the numbers that are missing in a series from 1 to 20. There are some numbers already there as hints.
Curated OER
Number Sequencing : Which Number Is Missing?
In this number order learning exercise, students solve 11 multiple choice on-line interactive questions. Students analyze the series of numbers that are in order without skip counting. From four choices, students mark the number that is...
Curated OER
Number sequence
In this number sequence worksheet, 1st graders find which numbers are missing from the houses in numbers 1 through 9. Students then cut out the houses and put them in number order.
Curated OER
Before, Between or After to 99 (3)
For this ordering numbers worksheet, students study the given number or sets of numbers and then fill in the missing number that shows the order of the numbers.
Curated OER
Missing Numbers: Perceptual Level #1
In this number order worksheet, students add the missing numbers by starting at the face each time. Students' objective is to recall numbers counting forwards and backwards.
Curated OER
Subtraction-- Fill in the Gaps
In this math learning exercise, learners practice finding the missing numbers in a subtraction problem. There are 90 subtraction problems which are written horizontally, most with 2 digits. The answers are shown, but there is a missing...
Primary Resources
Primary Resources: Basic Addition and Subtraction
An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses
[Free Registration/Login may be required to access all resource tools.] The resource includes a video tutorial on how to find a missing number in a multi-operational problem by working backwards. The video is followed by practice...
Math Slice
Math Slice: Math Crossword Slice Special Test
Use this interactive math crossword puzzle to build number sense skills. Simply fill in the missing numbers based on the operation. Immediate feedback given to responses.
Beacon Learning Center
Beacon Learning Center: Missing Numbers
The learning exercise has student identify the missing numbers in a number sequence.
CK-12 Foundation
Ck 12: Elem Math: Completing the Addition Sentence Sums to 20
[Free Registration/Login may be required to access all resource tools.] The video shows how to count backwards to determine the missing number in an addition problem. The video is followed by practice problems to assess student...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Missing Number
[Free Registration/Login may be required to access all resource tools.] The resource is a video showing students how to find a missing number in a multi-step addition and subtraction problem using inverse operations. Adaptive practice...
University of Texas at Austin
University of Texas: Elementary Math Club: "Guess the Number" Magic Trick
Young scholars investigate the concept of a number as a quantity. The activity has learners convert back and forth between decimal and binary expansions of numbers. The lesson plan includes an overview and a lesson toolkit.
Math Is Fun
Math Is Fun: Fill in the Missing Numbers
Click the empty spaces to be given four choices for the missing number. Choose the correct one for each of the empty spaces, then play again!
National Council of Teachers of Mathematics
Nctm: Figure This: Which Is Worth More, a Smile or a Frown?
Solve for the value of the smiles and frowns to find out how much a smile is worth, in this activity. A challenge that focuses on number sense, number combinations, and unknowns. Included are examples of how this skill is applied in real...
Illustrative Mathematics
Illustrative Mathematics: Boys and Girls, Variation 2
Students are asked to solve a word problem with both addends unknown. They will write an equation and draw a picture to use to explain their answer.
Illustrative Mathematics
Illustrative Mathematics: Cave Game Subtraction
The purpose of this task is for students to practice creating and memorizing subtraction equations while focusing on missing addends. After modeling the activity with the whole class, this game would be perfect for centers and small groups.
ICT Games
Ict Games: Funky Mummy
Funky Mummy is a mobile-friendly number facts game. Play this game to practice quick recall of addition, subtraction and multiplication facts.
Better Lesson
Better Lesson: Missing Numbers to 50
SWBAT use patterns on a 50 chart to identify missing numbers.