Curriculum>Grade 2> Module 2>Topic D: Relate Addition and Subtraction to Length

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Practice subtracting two measurements. First, a longer and a shorter bar are measured and the difference between their lengths is found. Then, a ruler whose 0 is not aligned to the endpoint of an object is used to the find the length by subtraction

A. Represent change in length as addition or subtraction

B. Add three measurements to find the total length of a path

C. Count to determine length of an object that isn't aligned to 0 on a ruler

E. Use the difference between two numbers to measure a given object

F. Use a tape diagram to solve a +/- word problem involving length

G. Show the question/solution element of a word problem on a tape diagram and solve

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