1.OA.D.8 Worksheets, Workbooks, Lesson Plans, and Games
CCSS.MATH.CONTENT.1.OA.D.8
:"Determine the unknown whole number in an addition or subtraction equation relating three whole numbers."
These worksheets and games can help students practice this Common Core State Standards skill.
Worksheets
Vocabulary Cards: Subtraction Strategies
Worksheet
Vocabulary Cards: Subtraction Strategies
Use these vocabulary cards with the EL Support Lesson Plan: Subtraction Strategies.
1st Grade
Math
Worksheet
Solve the Story Problem
Interactive Worksheet
Solve the Story Problem
Practice solving different types of subtraction word problems with this worksheet. Plenty of space is included for students to show their thinking!
1st Grade
Math
Interactive Worksheet
Stamp Subtraction
Worksheet
Stamp Subtraction
This subtraction worksheet will help strengthen your students' ability of understanding word problems and they key words involved. Plenty of space is included for students to show their thinking!
1st Grade
Math
Worksheet
Mystery Number
Worksheet
Mystery Number
Find the mystery number in this intro-to-algebra worksheet that practice places value.
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
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
Lesson Plans
No plans found for this common core code.
Workbooks
No workbooks found for this common core code.
Games
Subtraction Pizza Party
Game
Subtraction Pizza Party
Mama mia! Kids must use subtraction skills to craft perfect pizzas in this game.
1st Grade
Math
Game
What's Missing? Subtraction Song
Song
What's Missing? Subtraction Song
Kids figure out how many are missing with this catchy subtraction song.
1st Grade
Math
Song
Treasure Diving: Addition Missing Addends Within 20 (Game 1)
Game
Treasure Diving: Addition Missing Addends Within 20 (Game 1)
Dive for treasure and missing factors in this online game featuring addition equations.
1st Grade
Math
Game
Water Rafting: Addition Missing Addends Within 10 (Game 1)
Game
Water Rafting: Addition Missing Addends 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
Match: Addition Within 10 and Missing Factors
Game
Match: Addition Within 10 and Missing Factors
Kids hone their single-digit addition skills as they match equations with their missing factors.
1st Grade
Math
Game
Match: Subtraction Within 10 and Missing Factors
Game
Match: Subtraction Within 10 and Missing Factors
In this matching game, first graders look at subtraction facts that are missing factors.
1st Grade
Math
Game
Exercises
No exercises found for this common core code.
