Illustrative Mathematics
Find the Missing Number
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
Curated OER
Missing Numbers in Equations
In this equations worksheet, students determine missing numbers to make equations true. A website reference for additional resources and answers are provided.
![Missing Numbers in Equations [A] Worksheet](http://content.lessonplanet.com/resources/thumbnails/210354/large/cgrmlwnvbnzlcnqymdezmdmzmc0ynzc5ny0xzzrhbji0lmpwzw.jpg?1414302217 "Missing Numbers in Equations [A] Worksheet")
Curated OER
Missing Numbers in Equations [A]
In this missing numbers in equations worksheet, students solve for the missing number in a set of 32 simple equations. Answers are included on page 2.
![Missing Numbers in Equations [B] Worksheet](http://content.lessonplanet.com/resources/thumbnails/210355/large/cgrmlwnvbnzlcnqymdezmdmzmc0ynzgwmy02a2t6dmwuanbn.jpg?1414302217 "Missing Numbers in Equations [B] Worksheet")
Curated OER
Missing Numbers in Equations [B]
In this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
![Missing Numbers in Equations [A] 2 Worksheet](http://content.lessonplanet.com/resources/thumbnails/210356/large/cgrmlwnvbnzlcnqymdezmdmzmc0ynzg4ns1zzjljec5qcgc.jpg?1414302492 "Missing Numbers in Equations [A] 2 Worksheet")
Curated OER
Missing Numbers in Equations [A] 2
For this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 3
In this missing numbers in equations worksheet, learners solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 5
In this missing numbers in equations learning exercise, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 6
In this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 7
In this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 7
In this missing numbers in equations worksheet, learners solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 8
For this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 9
For this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 10
In this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.