Common Core: 2nd Grade Math : Using Subtraction Within 100 to Solve Word Problems
Study concepts, example questions & explanations for Common Core: 2nd Grade Math
All Common Core: 2nd Grade Math Resources
Example Questions
Example Question #511 : Operations & Algebraic Thinking
Mr. Bell has 
This is a subtraction problem because we want to know how many desks are left over after all of Mr. Bell’s class sits at a desk. We take the number of desks in his room, and subtract the number of students that he has. 
Example Question #512 : Operations & Algebraic Thinking
The pet store has 
This is a subtraction problem because we want to know how many goldfish the pet store has left over after the teacher buys the first and takes them away from the store. We take the number of goldfish that the store had and then subtract the number that the teacher bought. 
Example Question #513 : Operations & Algebraic Thinking
On the morning of December 24th, a tree lot had 
This is a subtraction problem because we want to know how many trees were taken away, or sold, from the total. We take the number of trees they started with, and then subtract the number of trees they have left to find out how many they sold. 
Example Question #514 : Operations & Algebraic Thinking
Spot has a box of treats with 
This is a subtraction problem because we want to know how many of the total treats Spot has eaten. We take the total number of treats and then subtract the number of treats that are left in the box. 
Example Question #1 : Using Subtraction Within 100 To Solve Word Problems
The baseball team has 
This is a subtraction problem because we want to know how many balls are left over after each boy takes one. We start with the number of balls and then subtract the number that was taken. 
Example Question #2 : Using Subtraction Within 100 To Solve Word Problems
Jenny has 
This is a subtraction problem because we want to know how many games Jenny has left after she gives some to her friend. We take the total number of games that Jenny has, and then we subtract the number that she gave to her friend. 
Example Question #523 : Operations & Algebraic Thinking
Sarah got 
This is a subtraction problem because we want to know how many gifts she has left to open after she’s already opened some of her gifts. We take the total number of gifts she has, and then we subtract the number of gifts that she’s opened. 
Example Question #524 : Operations & Algebraic Thinking
Matt invited 
This is a subtraction problem because we want to find out how many of Matt’s invited friends were able to come to his party. We take the total number of people that were invited, and subtract the number of people that did not come. 
Example Question #525 : Operations & Algebraic Thinking
Ms. Smith’s class has 
This is a subtraction problem because we want to know how many students in Ms. Smith’s class are in school today out of the total number of students that she has. We take the total number of students and subtract the number of students who are not in school today. 
Example Question #526 : Operations & Algebraic Thinking
Joe has 
This is a subtraction problem because we want to know how many homework problems Joe will have left after he completes some of them. We take the total number of problems that he has and subtract the number that he plans to do tonight. 
All Common Core: 2nd Grade Math Resources
