Transcript Word Problems Tape Diagrams Double Number Lines

Word Problems
Tape Diagrams
Double Number Lines
Created by: Mrs. J Couch
Practice
 If 1 inch is approximately 2.54 centimeters, how many
centimeters are equal in length to 3.5 inches?
Practice
 The ratio of boys to girls in a class is 6:4. If there are 30
students in the class, how many are boys?
Practice
 The graph below compares cups to pints. Which of the
following ordered pairs would also satisfy this
relationship?
 A. (4, 2)
 B. (2, 4)
 C. (2, 0)
 D. (1, 2)
Practice
 The table below shows the cost for varying number of
books. If the relationship stays the same, determine the
value of n.
Tape Diagrams
 Drawings that look like a segment of tape, used to
illustrate number relationships. Also known as strip
diagrams, bar models or graphs, fraction strips, or
length models
Practice
 A 5th grade class counted the number of cars that went
by the front entrance of the school between 9 o’clock
and 10 o’clock. The total number of cars counted were
156. There were 3 times as many passenger cars as
trucks. How many passenger cars and how many
trucks were counted?
Practice
 There are 3.5 times as many fifth graders at School A
than School B. There are 115 more students at School
A than School B. How many students are there at
School A how many students attend School B?
Double Number Line
 They are used for understanding the equivalence of
two related numbers. It’s called “double” because each
mark on the line has two sets of numbers matched to it.
The top row of numbers describes the whole
represented by the line in one way and the bottom row
describes the whole in another way. Because the whole
line is the same, it’s possible to see the equivalences
between the rows of numbers at any point on the line.
Practice
Practice
 Kyle has sold 28 candy bars. That’s 4 times as many
as Jack sold. How many more candy bars did Kyle sell
than Jack?
Practice
 Mrs. Wesley purchased 42 meters of wire. She used
3/7 of the wire in a science experiment. How many
meters of wire did Mrs. Wesley have left?
Copy and finish for
homework:
 At the ski park each lift holds 3 people, and there are 5
lifts. The lift takes 10 minutes. There are still 150
people in the line, and the lift closes in exactly one
hour. Will all the people be able to ride the lift? Justify
your answer.