Carroll County Public Schools
Mathematics Formative Assessment Task
Grade 5 Unit 1
Standard(s)
FA.5.NF.1
Use equivalent fractions as a strategy to add and subtract fractions.
5. NF.1. Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent
fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 =
8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)
Circle all of the expressions that have a sum between 1 and 2.
4 3
9
1
1 5
      
9 7
10 9
2 6

1 1
7 6
9 6
      
3
4
8
7
7
5
Performance Level Descriptors and Standards for Mathematical Practice
The performance level descriptors (PLDs) below describe the skills, knowledge and practices a student who has achieved a
particular performance level should be able to demonstrate. The goal is to have all students demonstrate a Strong
Command (Level 4) by the end of instruction. Students who already show a Strong Command may be ready for
enrichment.
Fractions with
Unlike
Denominators
5.NF.1
Level 5:
Distinguished
Command
Adds and subtracts
more than three
fractions and mixed
numbers with unlike
denominators in such
a way as to produce
an equivalent sum or
difference with like
denominators.
Level 4: Strong
Command
Level 3: Moderate
Command
Level 2: Partial
Command
Adds and subtracts up
to three fractions and
adds and subtracts two
mixed numbers with
unlike denominators in
such a way as to
produce an equivalent
sum or difference with
like denominators.
Adds and subtracts
two fractions or mixed
numbers with unlike
denominators in such
a way as to produce an
equivalent sum or
difference with like
denominators.
Adds or subtracts two
fractions or mixed
numbers with unlike
denominators using
only fractions with
denominators of 2,4, 5
or 10 in such a way as
to produce an
equivalent sum or
difference with like
denominators.*
*below grade level.
The bold print contained in the PLDs indicates major changes from one level to the next.
From PARCC Performance Level Descriptors – Grade 5 Mathematics
Standards for Mathematical Practice
 Make sense of problems and persevere in solving
them.
 Use appropriate tools strategically.
 Attend to precision.
 Reason abstractly and quantitatively.
 Look for and make use of structure.
 Construct viable arguments and critique the
reasoning of others.
 Look for and express regularity in repeated reasoning.
 Model with mathematics.
The bold print contained in the SMP indicates practices assessed on PARCC related to the standard.
Answers:

Name- ___________________________________________ Date- ______________________