LargerSmallerDifference

1
Larger-Smaller-Difference

• Word Problems
• Time Problems

2
Problems about Comparing

• I can solve one-step story problems about
  comparing.
• I can write equations for story problems about
  comparing.
• I can write story problems that are about
  comparing.

3
Elapsed-Time Problems

• I can solve one-step story problems about elapsed
  time.
• I can write equations for story problems about
  elapsed time.
• I can write elapsed-time story problems.

4
Larger-Smaller Comparing

• A larger-smaller-difference problem has a
  subtraction pattern
• You are asked to compare two numbers
• Decide which number is greater and which is less
• also decide which how much greater or how much
  less.

5
During the day, 1320 employees worked at
the toy factory. At night, 897 employees worked
there. How many more employees worked at the
factory during the day than at night?
6
Step 1 Read and recognize the problem type.
7
During the day, 1320 employees worked at
the toy factory. At night, 897 employees worked
there. How many more employees worked at the
factory during the day than at night?
8

• Larger-Smaller-Difference
• How many more employees worked at the factory
  during the day than at night?
• How much more?

9
Write an equation for the given information.

• 1320 employees 897 the difference

10
Find the number that solves the equation.

• 1320 employees
• - 897 employees
• 423 employees

11
Review and answer the question.

• 1320 employees
• - 897 employees
• 423 employees
• 897 employees
• 423 employees
• 1320 employees

12
Time Problem

• Read and recognize the problem type.
• Abraham Lincoln died at the age of 56. In what
  year was he born?

13
Write an equation for the given information.

• 1776
• -1492

14
Find the number that solves the equation.

• 1776
• -1492
• 284 years

15
Review and answer the question.

• 1776 1492
• -1492 284
• 284 years 1776

16
Read and recognize the problem type.

• Abraham Lincoln died at the age of 56. In what
  year was he born?
• later-earlier-difference

17
Write the equation for the given information.

• 1865 B 56

18
Find the number that solves the equation.

• 1865
• - 56
• 1809

19
Review and answer the question.

• 1865 1865
• - 56 - 1809
• 1809 56
• Abraham Lincoln was born in 1809.