# Search Our Content Library

23 filtered results
23 filtered results
1st grade
Addition and Missing Factors
Mathematics
Sort by
All in the Fact Family
Workbook
All in the Fact Family
Number sentences make more sense when picking apart fact families and putting them back together! This colorful workbook helps kids make connections between addition and subtraction.
1st grade
Math
Workbook
Where is my Fact Family?
Lesson Plan
Where is my Fact Family?
This nifty lesson helps kinesthetic learners reinforce their knowledge of the commutative property. Students will love the challenge of matching equations with their fact families.
1st grade
Math
Lesson Plan
Math Crossword Puzzles for Kids
Worksheet
Math Crossword Puzzles for Kids
Make math more enjoyable with these simple math crossword puzzles for kids!
1st grade
Math
Worksheet
Match: Addition within 20 and Missing Factors
Game
Match: Addition within 20 and Missing Factors
Kids practice matching each addition equation to its missing factor in this interactive math game.
1st grade
Math
Game
The Numbers Are Missing!
Worksheet
The Numbers Are Missing!
Uh-oh, the numbers have gone missing! Help students learn that the equals sign means “the same as” as they fill in missing factors to balance the equations.
1st grade
Math
Worksheet
Math Crosswords
Worksheet
Math Crosswords
Here's a fun way to approach simple math facts. Use these math crosswords to review addition the fun way!
1st grade
Math
Worksheet
Complete the Inverse Operation
Worksheet
Complete the Inverse Operation
Your child will develop the skills necessary to recognize patterns by completing inverse operations as well make a connection between addition and subtraction.
1st grade
Math
Worksheet
Match: Addition Within 20 and Missing Factors 2
Game
Match: Addition Within 20 and Missing Factors 2
Fill in these addition facts! This game challenges kids to match missing factors to each equation.
1st grade
Math
Game
Treasure Diving: Addition Missing Factors within 20 (Game 1)
Game
Treasure Diving: Addition Missing Factors within 20 (Game 1)
Dive for treasure and missing factors in this online game featuring addition equations.
1st grade
Math
Game
Treasure Diving: Addition Missing Factors Within 10 (Game 2)
Game
Treasure Diving: Addition Missing Factors Within 10 (Game 2)
Children hone their knowledge of addition and missing factors in a race to reach the sunken treasure.
1st grade
Math
Game
Make it Fair With Equal Groups
Worksheet
Make it Fair With Equal Groups
Kids love it when things are fair! Help students make equal groups of toys while exploring how the equals sign means “the same as.” Students will draw the missing objects and write the missing factors to balance the equations.
1st grade
Math
Worksheet
Snail Fact Families
Worksheet
Snail Fact Families
Kids add, subtract, or use math facts they have committed to memory to fill in the missing numbers in the fact families on this second grade math worksheet.
1st grade
Math
Worksheet
Balance Each Side
Worksheet
Balance Each Side
This worksheet helps students understand how an equals sign means “the same as.” By filling in missing factors, students gain practice seeing how multiple number combinations can make the same number.
1st grade
Math
Worksheet
Balancing Act
Worksheet
Balancing Act
These scales need balancing! By filling in missing addends, this worksheet helps students understand how an equals sign means “the same as.”
1st grade
Math
Worksheet
Treasure Diving: Addition Missing Factors Within 10 (Game 1)
Game
Treasure Diving: Addition Missing Factors Within 10 (Game 1)
Children use their addition knowledge to complete equations in a race to reach the sunken treasure.
1st grade
Math
Game
Give Me 10!
Lesson Plan
Give Me 10!
Roll some dice to introduce the early concepts of associative and commutative properties in addition by composing and decomposing 10. Worksheets and a quiz are included!
1st grade
Math
Lesson Plan
Addition Fact Families: Reach for the Stars #1
Worksheet
Addition Fact Families: Reach for the Stars #1
Review addition fact families with your child to help him reach for the stars! A mix of addition and subtraction will sharpen his math skills.
1st grade
Math
Worksheet
Water Rafting: Addition Missing Factors within 10 (Game 2)
Game
Water Rafting: Addition Missing Factors within 10 (Game 2)
In this water-themed race, first graders use math and logic to fill in each addition equation.
1st grade
Math
Game
Water Rafting: Addition Missing Factors within 10 (Game 1)
Game
Water Rafting: Addition Missing Factors within 10 (Game 1)
Which number is missing? Click on the number that fits each addition expression and win the race.
1st grade
Math
Game
Make it the Same
Worksheet
Make it the Same
It’s time to learn more about the equals sign! By filling in missing factors, students learn how the equals sign means “the same as.”
1st grade
Math
Worksheet
Simple Arithmetic
Worksheet
Simple Arithmetic
Have a ball with this addition and subtraction worksheet! Kids fill in the missing numbers on each beach ball to make its statement true.
1st grade
Math
Worksheet
Math Lab Addition #2
Worksheet
Math Lab Addition #2
Not only can your child practice her math facts with numbers between 1 and 20, she'll also practice writing addition problems with the correct symbols.
1st grade
Math
Worksheet
Addition Symbols Math Lab
Worksheet
Addition Symbols Math Lab
Your can experiment with addition facts here in the math lab. Can he write the missing addition symbols and complete the problems?
1st grade
Math
Worksheet