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
Star Math
Practice basic subtraction and addition with your kindergarten class. The first two sections of the instructional activity feature simple addition and subtraction problems, written in the horizontal format. The last section provides the...
Math Worksheets Land
Recognize Area as Additive - Step-by-Step Lesson
Do your scholars have a basic understanding of area calculations? Give them an extra challenge with this irregular shape missing one of its length measurements. Using the given lengths, they figure the area of the entire shape. The...
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
Addition and Subtraction
For this addition and subtraction worksheet, students use the number line to help find the missing numbers for the 23 single and double digit problems.
Math-U-See
Algebra 1 Readiness Test
Your learners will appreciate this assessment of basic skill calculations that are prerequisite to Algebra1. Adding, subtracting, multiplying, and dividing procedures are addressed in conjunction with whole numbers, decimals, fractions,...
Arcademics
Swimming Otters
Otters swim through numerical gates carrying multiplication equations with a missing factor. By choosing the gate with the correct missing factor, players make the otter swim faster in the online game.
Curated OER
Fact Families
In this fact families worksheet, 1st graders write four related addition fact problems that have a sum of eight. They write four addition problems with the sum of nine. Students solve three word problems.
Curated OER
Add Groups of Ten
In this addition worksheet, students add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Curated OER
Year 6: Order of Calculating 3
In this math problem solving activity, students find the values using multiple steps of adding, subtracting, multiplying, dividing and numbers in parentheses. Students solve 14 problems.
Curated OER
Detective Duck's Preparatory Course
In this addition worksheet, 4th graders focus on missing numerals. Students complete 13 problems solving for missing digits in each of the vertical addition problems.
Curated OER
Missing Number Addition #3
In this addition worksheet, learners fill in the missing number needed to arrive at a given sum. A reference web site is given for additional activities.
Curated OER
Make 10 to Add: Practice
In this adding to 10 worksheet, students learn how to solve addition problems with sums greater than 10 by first making ten and adding in the remaining numbers. In the second set, students find the missing number to add to ten to solve...
Curated OER
Math Online Exercises
In this variety of online math problems worksheet, learners fill in the missing numbers on two number ladders, solve/calculate thirty-six addition, subtraction, multiplication and division math problems and answer three word sentences....
Curated OER
Math Squares
For this math worksheet, students solve 4 grid puzzles in which the rows, columns and diagonals total the number at the end of each. There are helpful strategy hints on the page.
Pennsylvania Department of Education
Volume of Compound Figures
Fifth graders use patterns, models and relationships to solve equations. In this equations instructional activity, 5th graders define vocabulary for equations and complete worksheets explaining variables and solving problems.
Curated OER
Relate Addition and Subtraction: Practice
In this addition and subtraction worksheet, students find the missing numbers for the addition and subtraction equations. Students then complete the fact families for the addition and subtraction equations. Students finish with two test...
Curated OER
Addition Using Blocks #2
In this addition worksheet, students look at block and their accompanying numerical values, then fill in missing numbers to complete simple addition problems. Worksheet is labeled as a sample from a subscription site.
Curated OER
Place Value Chart
For this place value worksheet, students fill in the missing numbers, hundreds, tens, and ones into the place value chart with three digit numbers. Students complete 7 problems.
Curated OER
Adding Up to Ten
In this addition worksheet, 1st graders write the missing numbers to make an equation that is equal to 10. They count the number of yellow caterpillars to determine the first addend, and count the number of pink caterpillars to determine...
Concord Consortium
The Trouble with Tables
Tackle these tables. A performance task has learners complete two puzzles using addition and subtraction. They must fill in tables with missing addends, sums, minuends, subtrahends, or differences.
DK Publishing
Spot the Doubles
Have fun with counting and ladybugs! Kindergartners count the number of spots on the first half of the bug's wings, then double the number to practice their addition skills. Have kids color the ladybugs when they're finished with the...
Curated OER
Vectors
Represent motion with arrows and call them vectors! The lesson is a presentation that models the mathematics involved when determining a resultant vector. It addrssses motions that are parallel, perpendicular, and a combination of...
Curated OER
2 Digit Addition Worksheet (No Regrouping) #4
For this addition worksheet, students solve 20 problems in which two digit numbers are added. There is no carrying on this page.