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Kentucky Standards

Kentucky 1st Grade Math Standards

All 21 Kentucky math standards for 1st grade, each explained in plain English. The official wording is in Kentucky Department of Education's document, linked at the end of this page.

21 standards

Operations and Algebraic Thinking

8 standards
KY.1.OA.1
Solve addition and subtraction word problems within 20 about adding to, taking away, combining, separating, and comparing, with the missing number in any spot.
KY.1.OA.2
Solve story problems that add three whole numbers totaling 20 or less, showing the problem with objects, drawings, or an equation with a box for the missing number.
KY.1.OA.3
Use rules like switching the order or regrouping numbers as shortcuts for adding and subtracting, like solving 2 + 6 + 4 as 2 + 10.
KY.1.OA.4
Treat subtraction as finding a missing addend, like solving 10 - 8 by asking what number added to 8 makes 10.
KY.1.OA.5
Connect counting with adding and subtracting, like counting on 2 to add 2 or counting back to take away.
KY.1.OA.6
Add and subtract within 20 using strategies like counting on, making 10, breaking numbers apart, and related facts, and add and subtract within 10 quickly and accurately.
KY.1.OA.7
Explain that the equal sign means both sides have the same value, and decide whether addition and subtraction equations like 4 + 1 = 5 + 2 are true or false.
KY.1.OA.8
Find the missing whole number in an addition or subtraction equation with three numbers, like 8 + ? = 11.

Number and Operations in Base Ten

6 standards
KY.1.NBT.1
Count forward to 120 and backward from 120 starting at any smaller number, and read, write, and match numerals to sets of objects in that range.
KY.1.NBT.2
Explain that the two digits of a number stand for tens and ones, including that 10 is a bundle of ten ones, 11 to 19 are a ten plus ones, and 30 means three tens.
KY.1.NBT.3
Compare two two-digit numbers by looking at their tens first, then their ones, and record the answer with >, = or <.
Common Core 1.NBT.3
KY.1.NBT.4
Add within 100, like 36 + 7 or 36 + 20, with models, place value, and properties, linking the method to writing and explaining when to make a new ten.
KY.1.NBT.5
Find 10 more or 10 less than any two-digit number in their head, like 47 + 10 = 57, without counting, and explain how they know.
Common Core 1.NBT.5
KY.1.NBT.6
Subtract a multiple of 10 from another between 10 and 90, like 70 - 30, with answers of zero or more, using models or strategies and linking them to a written method.

Measurement and Data

4 standards
KY.1.MD.1
Put three objects in order from shortest to longest, and compare two objects by measuring each against a third one.
Common Core 1.MD.1
KY.1.MD.2
Find how long something is by lining up copies of a smaller object, like paper clips, end to end without gaps or overlaps, and counting them.
KY.1.MD.3
Tell and write time to the hour and half hour on analog and digital clocks, and name the value of a penny, nickel, dime, and quarter.
KY.1.MD.4
Ask a question, plan how to collect classmates' answers, sort the data into a table with up to three categories, and use it to find totals and compare categories.

Geometry

3 standards
KY.1.G.1
Tell the features that define a shape, like three sides for a triangle, from ones that do not, like color or size, and build and draw shapes with given features.
KY.1.G.2
Combine flat shapes like triangles and half-circles, or solid shapes like cubes and cylinders, into new composite shapes and build further shapes from those.
KY.1.G.3
Split circles and rectangles into two or four equal shares, call them halves, fourths or quarters, and know that more shares means smaller shares.
Common Core 1.G.3

The official Kentucky documents

The plain-English lines on this page are EMStudio's own explanations of Kentucky's standards, not the official wording, which Kentucky Department of Education publishes in the documents above. Codes and strand names identify each standard.