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Add and Subtract Fractions Using Visual Models
Worksheet
Grade Level
Grade 5
5.54 Add and Subtract Fractions Using Visual Models
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Choose the model that correctly renames the fractions and finds 1 2/3 + 3/4.
A
Model A: a number line uses 12 equal intervals but lands one tick too far at 2 6/12 = 2 1/2.
B
Model B: a benchmark number line uses 12 equal intervals per whole; it shows 1 8/12 + 9/12 = 2 5/12, so the result is greater than 1 whole.
C
Model C: a number line uses 12 equal intervals but lands one tick short at 2 4/12 = 2 1/3.
D
Model D: a number line matches the partitions but uses the wrong operation and lands on 11/12.
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