DK Publishing
Addition Fact Families
Fact families are an excellent way to connect math operations for beginners to addition and subtraction. Use the examples here to review this concept before scholars try these on their own. For each, they examine two related number...
Curated OER
Related Addition and Subtraction
Warm up your mathematicians using this fact families worksheet! Because the answer is explained below, consider projecting this for the whole class and uncovering the bottom half after collecting student responses. There are two...
Curated OER
Fact Families
There is something to be said for fact families. Classmates read problems and write related fact families and number sentences. There are 6 wonderful problems to solve.
Curated OER
Related Addition and Subtraction
These fact families need more members! Here are 10 addition and subtraction problems that need related facts written in. There are single and double-digit numbers, and each of these is written out in a sentence. Note that the grammar is...
Curated OER
Related Addition and Subtraction
Can your scholars match these fact families? There are eight number sentences listed here, both addition and subtraction. Learners scan a list of eight other equations, matching each original with one that is in its fact family. All...
Curated OER
Fact Families to 10
In this mathematics worksheet, 1st graders complete each fact family. Then they solve each addition and subtraction sentence using counter to show their sentence. Students also explain their idea of what a fact family is to them.
Curated OER
Related Addition and Subtraction
These fact families are missing a member! Learners examine a set of three equations from the same fact family and write in the one that is missing. There are two more similar questions here. There are no directions, so be sure your kids...
Curated OER
Fact Families
In this fact family learning exercise, 1st graders complete 4 sets of blanks that show addition and subtraction fact families. They examine 3 sets of numbers and determine which one shows the fact families that go with the numbers 5, 2,...
Curriculum Corner
Number Family Cards
Sixteen number families test young mathematicians' knowledge of the commutative and associative property of addition. Pupils list four problems—two addition and two subtraction—related to a given set of three numbers.
Illustrative Mathematics
Sum and Difference Angle Formulas
Need practice deriving trigonometric angle formulas? With this worksheet, pupils derive the sum and difference formulas for cosine and tangent and the difference formula for sine. Scholars use the sine sum formula and other known...
Curated OER
Relate Addition and Subtraction
In this addition and subtraction worksheet, students use problem solving skills to write number sentences and solve 6 word problems that require them to add and subtract.
Curated OER
Addition and Subtraction Challenge
In this addition and subtraction practice activity, students use their problem solving skills to sove 19 problems that require them to fill in the blanks in 19 number sentences.
Curated OER
Fact Families
In this mathematics worksheet, 1st graders create a fact family that uses specific numbers given. Then they draw eight circles, add five more, and write the fact out in a problem.
Curated OER
Relate Addition and Subtraction Enrichment 14.7
In this addition and subtraction worksheet, students solve 3 problems in which lines are drawn to match the pictures to the number sentences in the same fact family. Students solve the problems.
Curated OER
Relate Addition and Subtraction: Practice
In this addition and subtraction instructional activity, 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...
Curated OER
Names for Numbers
For this mathematics worksheet, 1st graders identify various numbers and use counters to illustrate each fact given. Then they complete the math sentences correctly.
Curated OER
Relate Addition and Subtraction Facts
In this addition and subtraction facts learning exercise, students use problem solving skills to solve 6 word problems that require them to add or subtract.
Curated OER
Sum and Difference angle formulas
Learners use the sum angle formula for sine to derive the sum and difference formulas for cosine and tangent. The level of difficulty is quite high. Learners must be familiar with trigonometric identities as well as the characteristics...
Curated OER
More and Less
Mental mathematicians add and subtract 1, 10, and 100 from sets of numbers. Each set of one, two and three-digit numbers gives scholars a chance to practice their addition and subtraction skills. There are 62 whole numbers in all. What...
Houghton Mifflin Harcourt
Mental Math: Subtract Tens - Homework 12.1
Now that your class can add by 10s they can start subtracting by 10s. This clear, learner-friendly worksheet provides a good example (10-rods are pictured) and 7 problems to solve. Relates groups of tens to single-digit numbers, which...
Curated OER
Winter Facts Scavenger Hunt
In this winter facts activity, students use provided links to find answer to 17 winter related questions. Two bonus questions are included.
Curated OER
Decision Making
In this subtraction fact worksheet, 1st graders write six related subtraction facts for each given problem. They solve three word problems using subtraction.
Curated OER
Relate Counting to Addition and Subtraction
Find 10 simple word problems that require addition and subtraction skills. Although these offer clear math procedure, the grammar isn't perfect. The highest number your learners encounter here is 40, and each question has room for...
Curated OER
Using Subtraction Strategies 2
In this subtraction strategies worksheet, students review the ways to subtract and then solve the subtraction problems. Students also answer a test prep question.