Modeling Word Problems

The video tutorial introduces the concept of keywords in math word problems, similar to how keywords in movie ads give clues about the movie. It explains how certain words indicate whether a problem requires addition or subtraction. Examples are provided to illustrate the use of keywords in solving word problems, focusing on addition and subtraction scenarios.

What is the purpose of keywords in math word problems?

• To add unnecessary information

• To confuse the reader

• To provide clues about the type of operation needed

• To make the problem more interesting

Which of the following keywords suggests an addition problem?

• Difference

• Fewer

• Altogether

• Left

If a word problem includes the phrase 'how many more', what operation should you use?

• Addition

• Subtraction

• Multiplication

• Division

In the problem 'Ignacio has $24, earns $5, and then $7 more', what is the total amount of money Ignacio has?

• $36

• $29

• $24

• $31

Darcy has 24 popsicles but needs 32. How many more does she need?

• 12

• 10

• 6

• 8

Maria, Jonathan, and Wendy have $7, $4, and $6 respectively. What is their total amount?

• $17

• $15

• $16

• $18

Why can't we determine if Maria and her friends have enough money to go to the zoo?

• We don't know the cost of the zoo tickets

• We don't know how much money they have

• They lost some money

• They haven't decided to go yet