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Problemas en un solo paso

2nd Grade

Alabama Course of Study Standards: 1

Use addition and subtraction within 100 to solve one- and two-step 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 two-step 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 - K-12 Academic Standards: 2.OA.A.1

Use addition and subtraction within 100 to solve one- and two-step 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 two-step 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 two-digit numbers using part-whole 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:
  • One-Step problems:
    • Add to/Take from-Start Unknown
    • Compare-Bigger Unknown
    • Compare-Smaller Unknown
  • Two-Step 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

  1. Use addition and subtraction within 100 to solve one-step 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
  2. Use addition and subtraction within 100 to develop an understanding of solving two-step 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 two-step 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 standard-length 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 - K-12 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 whole-number 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 whole-number sums and differences within 100 on a number line diagram.

Georgia Standards of Excellence (GSE): 2.MDR.5.5

Represent whole-number 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 whole-number 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 whole-number 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 whole-number sums and differences within 100 on a number line.

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