Curated OER
Add and Subtract within 1000
There are some missing parts in these addition and subtraction problems. Scholars start by completing two number sentences, each involving all three-digit numbers. Then, they examine another number to determine the value of the tens...
Helping with Math
Addition: Number Bonds to 20
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of 41 missing addend problems. Answers are available.
Curated OER
Add or Subtract (up to 50)
Do you add or subtract? It's up to your mathematicians as they fill in the symbol for 16 equations to make them true. The numbers in this section don't exceed 18. Next, learners answer six word problems by determining the missing addend...
Curated OER
Missing Addends
In this addition worksheet, 2nd graders work toward finding the missing addends. students complete 3 problems using the given problems and pictures for visual assistance.
Curated OER
Missing Number Sum Activity
In this missing number worksheet, students fill in missing addends to reach the sum of 19, 8 problems total, then answer additional related questions.
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 Addends
In this missing addends worksheet, students fill in one missing addend in a problem to arrive at the sum of 20, 5 problems total. An answer key is included.
Curated OER
Addition Practice
In this addition worksheet, students practice their adding skills. Kids are given twenty addition problems with missing sums or addends where students are to find the missing numbers.
Curated OER
Missing Addends: Sums With 8 and 9
In this missing addends worksheet, students fill in missing factors in addition problems. All problems have sums of 8 or 9. A reference web site is given for additional activities.
Curated OER
Addition: Equation to 10 (Missing Addend)
In this addition skills worksheet, students fill in the missing addends in 16 problems. Math counting blocks are provided in each problem.
Curated OER
Math Lesson Study Plan
Second graders find missing addends by solving math word problems. In this missing addend lesson, 2nd graders work in a whole group setting to find the missing addends in word problems before using the strategies to work independently....
NTTI
Putting Together Ten
Groups explore sets of 10 items in two varieties (i.e. 3 white buttons and 7 black ones, or 5 bears and 5 bunnies). They brainstorm about their objects, write math sentences to represent what they have, and report their discoveries to...
Curated OER
Completing the Next Hundred
For this hundreds worksheet, students fill in the missing addend and complete the hundred numbers at the end of the problems. Students complete 3 sets of problems.
Curated OER
Complete Number Sentences
In this addition instructional activity, students solve 14 problems in which the missing addend in an addition problem is filled in. All problems will have a sum of 100.
Curated OER
Tens and Ones
Learners view three problems involving adding or subtracting with ones and tens. Each problem is followed by an explanation and an answer as to how the problem should be done. Note: This resource contains incorrect grammar and could be...
Curated OER
Equations by 1 through 10
In this missing addend worksheet, students fill in the missing addend to the addition and subtraction problems. Students fill in the missing addends for numbers 1 through 10 for 100 problems.
Curated OER
Riddle Time
In this missing addends worksheet, students find the missing addends to math problems that are represented by letters. Students complete 10 problems and then use the letters to solve a riddle.
Curated OER
Multiplication to 5x5 sheet 3
In this multiplication worksheet, students fill in the missing addends to the multiplication problems up to 5x5. Students complete 40 problems.
Curated OER
Division related facts 10s and 100s sheet 2
In this division worksheet, students fill in the missing addends that are multiples of either 10s or 100s to the problems. Students complete 40 problems.
Curated OER
Addition Exercises
For this addition worksheet, 2nd graders fill in the missing addend to the addition problems to make both sides of the equal sign equal. Students complete 7 problems.
Curated OER
Value of X
In this missing addend worksheet, students find the value of x that represents a number in addition problems. Students complete 10 problems total.
Curated OER
What's in the Gift?
In this multiplication activity, students find the missing addend in multiplication problems represented by a gift. Students complete 24 problems.
Curated OER
Complete the Number Sentences
In this addition instructional activity, students use three digit addition and solve for missing addends. Students master 15 problems filling in the missing numerals for each.
Curated OER
Missing Number Addition
In this addition worksheet, students are given one addend and the answer to a total of 25 simple addition problems. Students fill in the missing addend. Worksheet is labeled as a sample from a subscription site.