1st Grade Math (North Dakota Content Standards)

Number and Operations (NO)

• 1.NO.CC.1 Count on by 1s and 10s starting anywhere up to 120.
• 1.NO.CC.2 Count back by ones and tens from a given number within 120.
• 1.NO.CC.3 Write a numeral up to 120 to show how many objects.
• 1.NO.CC.4 Recognize arrangements of up to 20 objects without counting and name the amount.
• 1.NO.CC.5 Skip count by 5s (5–50) and 10s (10–100) from any multiple, noticing patterns.
• 1.NO.NBT.1 Show that a 2-digit number's digits mean tens and ones.
• 1.NO.NBT.2 Compare two-digit numbers with >, < or =, justifying with tens and ones.
• 1.NO.NBT.3 Add a one-digit number to a two-digit number within 100 using models and place value.
• 1.NO.NBT.4 Subtract multiples of 10 within 100 using models and place value.
• 1.NO.NBT.5 Add or subtract 10 from a two-digit number mentally and explain how.
• 1.NO.NF.1 Cut circles and rectangles into 2 or 4 equal parts and name them halves or fourths.

Algebraic Reasoning (AR)

• 1.AR.OA.1 Add and subtract within 10 automatically.
• 1.AR.OA.2 For any number 1–19, find the number that makes 20.
• 1.AR.OA.3 Break numbers to 20 into two parts in several ways.
• 1.AR.OA.4 Solve word problems that add three numbers within 20, including unknowns.
• 1.AR.OA.5 Solve subtraction word problems within 20, including unknowns.
• 1.AR.OA.6 Use +, − and = correctly, understand the equal sign and decide if equations are true or false.
• 1.AR.OA.7 Identify, make, complete and extend repeating, growing and shrinking patterns.

Geometry and Measurement (GM)

• 1.GM.G.1 Name trapezoids, rhombuses, pentagons, hexagons and octagons.
• 1.GM.G.2 Name cylinders, cones, triangular prisms and rectangular prisms.
• 1.GM.G.3 Describe attributes of the 2D shapes and 3D solids named in 1.GM.G.1 and 1.GM.G.2.
• 1.GM.G.4 Build a shape or solid by combining several 2D shapes and/or 3D solids.
• 1.GM.M.1 Measure length end to end with same-size non-standard units.
• 1.GM.M.2 Compare the lengths of three objects.
• 1.GM.M.3 Read and record hour and half-hour times on analog and digital clocks.
• 1.GM.M.4 Know what a dollar bill and each U.S. coin (quarter, dime, nickel, penny) is worth.
• 1.GM.M.5 Count mixed pennies, nickels and dimes up to one dollar by 1s, 5s and 10s.

Data, Probability and Statistics (DPS)

• 1.DPS.D.1 Collect, organize and show data with up to three categories in picture and bar graphs.
• 1.DPS.D.2 Answer questions about totals, category counts and how many more or fewer.