OneStep Problems
2nd Grade


Alabama Course of Study Standards:
1

Use addition and subtraction within 100 to solve one and twostep word problems by using drawings and
equations with a symbol for the unknown number to represent the problem. 
Arkansas Academic Standards:
2.OA.A.1

 Use addition and subtraction within 100 to solve one and twostep word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions
 Represent a strategy with a related equation including a symbol for the unknown number

Arizona Academic Standards:
2.OA.A.1

Use addition and subtraction within 100 to solve one and twostep word problems. Represent a word problem as an equation with a symbol for the unknown. See Table 1. 
Common Core State Standards:
Math.2.OA.1 or 2.OA.A.1

Use addition and subtraction within 100 to solve one and twostep word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. 
Georgia Standards of Excellence (GSE):
2.NR.2.3

Solve problems involving the addition and subtraction of twodigit numbers using partwhole strategies. 
North Carolina  Standard Course of Study:
2.OA.1

Represent and solve addition and subtraction word problems, within 100, with unknowns in all positions, by using representations and equations with a symbol for the unknown number to represent the problem, when solving:
OneStep problems:
 Add to/Take fromStart Unknown
 CompareBigger Unknown
 CompareSmaller Unknown
 TwoStep problems involving single digits:
 Add to/Take from Change Unknown
 Add to/Take From Result Unknown

New York State Next Generation Learning Standards:
2.OA.1

 Use addition and subtraction within 100 to solve onestep word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.
e.g., using drawings and equations with a symbol for the unknown number to represent the problem  Use addition and subtraction within 100 to develop an understanding of solving twostep word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.
e.g., using drawings and equations with a symbol for the unknown number to represent the problem

Ohio's Learning Standards:
2.OA.1

Use addition and subtraction within 100 to solve one and twostep word problems involving situations of adding to, taking from,
putting together, taking apart, and comparing, with unknowns in all
positions, e.g., by using drawings and equations with a symbol for the
unknown number to represent the problem. See Table 1, page 94. 
Tennessee Academic Standards:
2.OA.A.1

Add and subtract within 100 to solve one and twostep contextual problems, with unknowns in all positions, involving situations of add to, take from, put together/take apart, and compare. Use objects, drawings, and equations with a symbol for the unknown number to represent the problem. 
Alabama Course of Study Standards:
20

Measure to determine how much longer one object is than another, expressing the length difference of the two
objects using standard units of length. 
Common Core State Standards:
Math.2.MD.4 or 2.MD.A.4
North Carolina  Standard Course of Study:
2.MD.4

Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit. 
Georgia Standards of Excellence (GSE):
2.MDR.5.3

Measure to determine how much longer one object is than another and express the length difference in terms of a standardlength unit. 
New York State Next Generation Learning Standards:
2.MD.4

Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard "length unit." 
Tennessee Academic Standards:
2.MD.A.4

Measure to determine how much longer one object is than another and express the difference in terms of a standard unit of length. 
Alabama Course of Study Standards:
21

Use addition and subtraction within 100 to solve word problems involving same units of length, representing the
problem with drawings (such as drawings of rulers) and/or equations with a symbol for the unknown number. 
Arkansas Academic Standards:
2.MD.B.5

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, and write equations with a symbol for the unknown number to represent the problem 
Arizona Academic Standards:
2.MD.B.5

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same unit. See Table 1. 
Common Core State Standards:
Math.2.MD.5 or 2.MD.B.5

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem. 
North Carolina  Standard Course of Study:
2.MD.5

Use addition and subtraction, within 100, to solve word problems involving lengths that are given in the same units, using equations with a symbol for the unknown number to represent the problem. 
New York State Next Generation Learning Standards:
2.MD.5

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units. e.g., using drawings and equations with a symbol for the unknown number to represent the problem 
Ohio's Learning Standards:
2.MD.5

Use addition and subtraction within 100 to solve word
problems involving lengths that are given in the same whole number
units, e.g., by using drawings and equations with a symbol for the
unknown number to represent the problem. Drawings need not show
details, but should show the mathematics in the problem. (This
applies wherever drawings are mentioned in the Standards.) 
Tennessee Academic Standards:
2.MD.B.5

Add and subtract within 100 to solve contextual problems involving lengths that are given in the same units by using drawings and equations with a symbol for the unknown to represent the problem. 
Alabama Course of Study Standards:
22

Create a number line diagram using whole numbers and use it to represent wholenumber sums and differences
within 100. 
Arkansas Academic Standards:
2.MD.B.6

Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and solve addition and subtraction problems within 100 on the
number line diagram 
Common Core State Standards:
Math.2.MD.6 or 2.MD.B.6

Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent wholenumber sums and differences within 100 on a number line diagram. 
Georgia Standards of Excellence (GSE):
2.MDR.5.5

Represent wholenumber sums and differences within a standard unit of measurement on a number line diagram. 
North Carolina  Standard Course of Study:
2.MD.6

Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points and represent wholenumber sums and differences, within 100, on a number line. 
New York State Next Generation Learning Standards:
2.MD.6

Represent whole numbers as lengths from 0 on a number line with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent wholenumber sums and differences
within 100 on a number line. 
Ohio's Learning Standards:
2.MD.6

Represent whole numbers as lengths from 0 on a number line
diagram with equally spaced points corresponding to the numbers 0, 1, 2,..., and represent whole number sums and differences within 100 on a number line diagram. 
Tennessee Academic Standards:
2.MD.B.6

Represent whole numbers as lengths from 0 on a number line and know that the points corresponding to the numbers on the number line are equally spaced. Use a number line to represent whole number sums and differences of lengths within 100. 
Wisconsin Academic Standards:
2.MD.B.6

Represent whole numbers as lengths from 0 on a number line with equally spaced points corresponding to the numbers 0, 1, 2 ... and represent wholenumber sums and differences within 100 on a number line. 
Pennsylvania Core Standards:
CC.2.2.2.A.1

Represent and solve problems involving addition and subtraction within 100. 
Pennsylvania Core Standards:
CC.2.2.2.A.2

Use mental strategies to add and subtract within 20. 
Pennsylvania Core Standards:
CC.2.4.2.A.6

Extend the concepts of addition and subtraction to problems involving length. 
Georgia Standards of Excellence (GSE):
2.NR.2.3

Solve problems involving the
addition and subtraction of
twodigit numbers using partwhole strategies. 
Georgia Standards of Excellence (GSE):
2.NR.2.4

Fluently add and subtract
within 100 using strategies
based on place value,
properties of operations,
and/or the relationship
between addition and
subtraction. 
