12 is 40% of what number
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter0: Preparing For Algebra
Section: Chapter Questions
Problem 41PRT
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Question
12 is 40% of what number
Lea makes a double number line and starts with ×10, but then gets concerned. “That’s too big... I have to start over.” What did Lea do and why don’t she have to start over.
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Lea makes a double number line and starts with ×10, but then gets concerned. “That’s too big... I have to start over.” What did Lea do and why don’t she have to start over.
if 12 is 40% =30
why would Leah use x10 to find the answer
Solution
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