1st Grade Math (Nebraska Standards)

Number (N)

• MA.1.N.1 Say how many are in a briefly shown collection without counting (subitizing).
  • MA.1.N.1.a Recognize briefly shown arrangements of up to 20 without counting.
• MA.1.N.2 Extend the counting sequence (counting and cardinality).
  • MA.1.N.2.a Count by ones and tens within 120 from any starting number.
  • MA.1.N.2.b Link counting to totals: counting on adds and counting back takes away.
  • MA.1.N.2.c Write numerals up to 120 to match sets of objects.
  • MA.1.N.2.d Skip count by 2s, 5s and 10s.
• MA.1.N.3 Represent and compare two-digit numbers using base ten.
  • MA.1.N.3.a Understand 10 as a bundle of ten ones and two-digit numbers as tens and ones.
  • MA.1.N.3.b Compare two-digit numbers with words and symbols, justified by tens and ones.
• MA.1.N.4 Compute with addition and subtraction.
  • MA.1.N.4.a Add and subtract within 20 with flexible strategies such as counting on, making ten and doubles.
  • MA.1.N.4.b Add and subtract within 10 efficiently and accurately.
  • MA.1.N.4.c Find differences between multiples of 10 from 10 to 90 and write the equation.
  • MA.1.N.4.d Find 10 more or 10 less than a two-digit number mentally and explain how.
  • MA.1.N.4.e Add within 100 (two-digit plus one-digit or plus a multiple of ten) with place-value strategies tied to written methods.
  • MA.1.N.4.f Add two-digit numbers by combining tens with tens and ones with ones, making a ten when needed.
  • MA.1.N.4.g Subtract multiples of ten from two-digit numbers and explain the reasoning.
• MA.1.N.5 Use properties of operations and the link between addition and subtraction.
  • MA.1.N.5.a Use the meaning of the equal sign to decide if equations are true and give true examples.
  • MA.1.N.5.b Use addition facts to solve subtraction problems.
  • MA.1.N.5.c Find the unknown whole number in an addition or subtraction equation.
  • MA.1.N.5.d Use the commutative property and composing or decomposing numbers to build strategies.
  • MA.1.N.5.e Add three whole numbers with a total up to 20 using flexible strategies.
  • MA.1.N.5.f Solve real addition and subtraction problems within 20 with the unknown in any position.
  • MA.1.N.5.g Write a real-world problem to match an addition or subtraction equation within 20.

Geometry (G)

• MA.1.G.1 Describe attributes of 2D shapes and 3D solids.
  • MA.1.G.1.a Describe attributes of rhombi, trapezoids and hexagons.
  • MA.1.G.1.b Describe attributes of cones, cylinders, cubes and rectangular prisms.
  • MA.1.G.1.c Describe sides and lines as parallel or not parallel.
  • MA.1.G.1.d Split circles and rectangles into halves and fourths.
• MA.1.G.2 Measure and compare lengths.
  • MA.1.G.2.a Measure length with same-size non-standard units laid end to end.
  • MA.1.G.2.b Order three objects by length, directly or by using a third object.
• MA.1.G.3 Work with time and money.
  • MA.1.G.3.a Know the value of dimes and pennies and solve problems using the ¢ symbol.
  • MA.1.G.3.b Count collections of like coins (pennies, nickels or dimes) by 1s, 5s and 10s.
  • MA.1.G.3.c Tell and write time to the hour and half hour on analog and digital clocks.

Data (D)

• MA.1.D.1 Pose questions and represent data.
  • MA.1.D.1.a Collect, organize and show data with up to three categories in a picture graph.
• MA.1.D.2 Analyze data and interpret results.
  • MA.1.D.2.a Answer questions about totals, category counts and differences from a picture graph.