Curated OER
St. Patrick's Day Missing Digits (H)
In this St. Patrick's Day missing digits worksheet, students solve for the missing digits in twenty-two addition, subtraction and multiplication equations.
Curated OER
Missing Addends
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the...
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.
Math Salamanders Ltd.
Missing Subtraction facts to 12 sheet 1
Pupils subtract numbers one through 12 and complete missing addend problems. This activity includes a helpful number line and 20 problems to complete. Tip: Hand out unifix cubes or chips to help tactile learners solve each problem.
Math Salamanders Ltd.
Missing Subtraction Facts to 20 sheet 2
They can tackle this instructional activity once your class has mastered basic double-digit subtraction. They'll need to find the missing subtraction facts to 20 that complete each problem.
Curated OER
Missing Addends: equal equations 3
Young mathematicians insert the missing addends to addition problems by making the equations equal on both sides of the equals sign. Students complete ten problems.
Curated OER
Unknown Addends (to 20): Count the Blank Boxes
By filling in the blank squares, learners complete five addition number sentences both visually and numerically. For each problem, a frame is filled with a certain number of images (turkeys, candles, etc.) and a certain number of blank...
Curated OER
Subtraction and Unknown Addends
A brief addition word problem has learners searching for the missing addend. They read about Mr. George, who already has five gallons of fuel in his car. Knowing the car can hold eleven gallons, they compute how many gallons he needs....
Curated OER
Subtraction and Unknown Addends
Using images helps budding mathematicians grasp difficult subtraction concepts. In this set of three word problems, they examine sets of objects which are reflected in each scenario. To approach subtraction in a more accessible way, the...
Curated OER
Find the Missing Number
Kids can use the train themed number line to help them solve any of the 12 missing addend math problems. They must determine what plus the given number equals the provided answer.
Curated OER
Missing Hundred Square
Kids are presented with the problem of finding the missing numbers to each of nine 100s squares. They'll need to subtract and add to make each puzzle equal 100. Great challenge or daily warm-up activity.
Curated OER
What's Missing?
Add a challenge for your young mathematicians' adventures in double-digit addition. Instead of simply computing sums in the 9 problems, they work backwards to fill in blanks among the addends. Resource makes a terrific extension or...
Curated OER
Addition: Equation to 10 (Missing Addend)
Use this activity as a way to solve missing addneds up to 10. Learners are given base 10 blocks and make number sentences by completing 16 missing addend number sentences. The structure of each problem is similar to a factor tree and may...
Curated OER
Addition Properties
Addition becomes much simpler once scholars understand its properties. They examine the commutative property through five equation pairs. For each, the addends have been switched and scholars must fill one in. The next six...
Curated OER
Missing Addends
In this missing addends learning exercise, learners solve 6 word problems where they are given 1 addend and the sum and must find the missing addend in order to solve each problem.
Curated OER
Missing Addends: equal equations
In this missing addends learning exercise, learners complete the missing addends in the addition problems to make each equation equal on each side of the equals sign. Students complete 10 problems.
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...
Curated OER
Subtraction and Unknown Addends
The missing addend strategy is helpful to young mathematicians approaching subtraction. This worksheet walks learners through the required steps, solving the problems with them. They examine situations with...
Curated OER
Finding Missing Sums and Addends
In this sums/addends worksheet, students find missing sums and addends in a set of 20 problems. Problems add 1 and 2-digit numbers. Answers included on page 2.
Curated OER
Missing Numbers - Addition Worksheet Set
Save some trees and use virtual worksheets. Here are 6 different virtual worksheets that require learners to determine the missing addend. Each page includes 12 problems to solve.
Curated OER
Subtraction and Unknown Addends (to 20) - Matching Worksheet
Piggies, puppies, dragons and other fantastical illustrations enable first graders to find the missing addends in a series of subtraction problems. After determining the unknown addend, pupils match the equations to the appropriate...
Curated OER
Missing Tens
Foster mental math skills with this worksheet; combine with 10-rods to modify. Twenty problems provide plenty of practice to master subracting by tens. Missing addends promote algebraic thinking.
Curated OER
Missing Sums and Addends
In this missing addends worksheet, students fill in the missing sums and addends for the addition questions. Students solve 20 problems.
Curated OER
Adding Animals
Writing equations from images helps young mathematicians grasp addition, especially when they get to look at cute animals as they do it. There are six number sentences here, each illustrated with a set of animals corresponding to...
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