What is the key concept that helps in solving rate problems?
Using a Double Number Line to Solve Rate Problems

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Mathematics
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1st - 6th Grade
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ignoring fractions
Using a calculator
Memorizing all rates
Understanding equivalent rates
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common mistake when setting up a double number line?
Using the wrong units
Not drawing the lines
Using too many numbers
Ignoring the rate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In Avery's example, how many lawns does he mow in 12 hours?
14 lawns
28 lawns
21 lawns
7 lawns
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the top line of a double number line represent in Avery's example?
The number of hours
The number of lawns
The rate of mowing
The total time
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the concept of increasing by 7 lawns and 4 hours called?
Multiplicative reasoning
Additive reasoning
Subtractive reasoning
Divisive reasoning
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you quickly determine the time taken for 21 lawns using multiplicative reasoning?
Add 7 repeatedly
Multiply 7 by 3
Divide 21 by 3
Subtract 4 from 21
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the advantage of multiplicative reasoning over additive reasoning?
It is less accurate
It is faster
It is more complex
It is slower
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