Curated OER
The Case of the Missing Numbers
In this finding the unknown numbers worksheet, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
Math Worksheets Land
Division and Finding Unknown Factors - Matching Worksheet
Explore the relationship between math operations with seven multiplication and division sentences, each of which is missing a number. The answer is missing for some, and factors, divisors, and dividends for others. Once these are...
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...
Math Worksheets Land
Division and Finding Unknown Factors - Independent Practice
These division problems are missing divisors! There are 10 equations here for scholars to complete, all with double-digit dividends and single-digit quotients. These are all whole numbers, perfect for beginners. See if pupils catch on to...
Common Core, Inc.
Multi-Digit Whole Number Subtraction
A thorough exploration into subtracting multi-digit numbers, this series of lessons is an excellent way to guide learners of any skill level. With a step-by-step lesson plan and straightforward assessment tools, kids are sure to...
Math Worksheets Land
Unknown Numbers in Sums and Differences
You've hit the word problem jackpot with this set of 10 addition and subtraction scenarios! For each, learners have to find a missing number. Sometimes it is the sum or difference, and for others, an addend or minuend. For each, there is...
Curated OER
Addition Start Unknown
Young learners will test their understanding of the operations and the strategy of addition in this worksheet. For the visual learners, there is space underneath each word problem for them to make illustrations to help them with solving...
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 one addend and a sum provided,...
Curated OER
I Have a Magic Pot
Pupils will explore numbers rules. They will create a picture of their rule and exchange their paper with a classmate. The classmate works to figure out the rule. They then share with each other how they found the rule. Questions are...
Fuel the Brain
Addition Change Unknown
Anna and Ryan don't have enough materials for their personal collection or to give away equally! Your pupil will read about their dilemma in their respective word problems and determine how many more of their item they need using...
Noyce Foundation
Apple Farm Field Trip
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
Curated OER
The Divider (whole number remainders)
Third graders use the lesson to support division of whole numbers where there is either no remainder or whole number remainders. They are able to
slit division problems into parts using known multiplication and division facts.
Curated OER
Compatible numbers to 20
Young scholars practice theories dealing with equals sign used as a balance, inequality symbols and practice utilizing a box or some other geometric shape to represent an unknown number. They assess numeracy problems embedded in...
Curated OER
Division Terms, Zero and One
For this division worksheet, students complete division problems by filling in the missing numbers, writing the problems, and filling in a chart. Students complete 4 sets of problems.
Curated OER
Joining (Addition) - Result Unknown
Having your learners make illustrations while solving a word problem will help visualize the problem they face. This activity challenges your class to solve for an unknown sum with multi-digit numbers
Math Mammoth
Multiplication Problems
In this multiplication problems learning exercise, students problem solve a variety of multiplication exercises to work on their skills of multiplying mentally, finding missing factors and finding unknown numbers.
Curated OER
Using Multiplication Facts to Divide
If Joe knows that 3 x 6 = 18, and has 18 cookies in 3 bags, how can he use that fact to know how many cookies go into each bag? Learners examine this and five other division word problems. They begin with a multiplication fact that they...
Illustrative Mathematics
What is a Trapezoid? (Part 1)
Challenge your class to construct a definition for trapezoids. Looking at four examples and four non-examples, students individually create definitions and use them to classify an unknown shape. Allow for small group and whole-class...
Curated OER
Joining (Addition) Result Unknown
Pupils will put their addition skills to the test by solving these word problems. They are asked what the unknown solution is based on the given number "plus one more."
Curated OER
Fact Families - 6, 7, and 42
Students investigate the problems that can be solved only using the numbers 6, 7, and 42. They write the correct number sentences and solve for the solution. Students then give a written explanation for how the problem was solved and the...
Fuel the Brain
Joining (Addition) - Result Unknown
Are two, three, and four digit word problems tricky for your learners in your classroom? This practice will help your young mathematicians use addition and show their work in the space provided using regrouping when necessary.
Curated OER
Joining (Addition) - Change Unknown
In a word problem, math practicers are typically accustomed to solving for the total answer. Instead, this worksheet provides the total sum, as well beneficial information for solving that problem, to have them try a new method of...
Curated OER
Addition/Join Result Unknown; Fact Family-4
By combining amounts from two parts of the day, your students will find a total sum.
Alabama Learning Exchange
Mix it Up! Exploring the Commutative and Associative Properties of Addition
Examine commutative and associative properties with your class. They'll explore the relationships between addition and subtraction and investigate patterns as they solve addition problems. Links to an assessment and a table game are...