Colorado grade 1 math worksheets
Every Colorado grade 1 math standard by its own code, with the printable sheets that practise it: 21 of 21 have sheets. New problems every time, answer keys and a one-page guide for grown-ups. Free, no sign-up.
Place value
- MA.1.NBT.A.1Count to 120 from any number, and read and write numerals in that range.Counting to 120
- MA.1.NBT.B.2A two-digit number is made of tens and ones; 10 is a bundle of ten ones.Tens and ones
- MA.1.NBT.B.3Compare two-digit numbers by their tens and ones, recording with >, = and <.Comparing two-digit numbers
- MA.1.NBT.C.4Add within 100 using models and place value strategies, composing a ten when needed.Adding within 100
- MA.1.NBT.C.5Find 10 more or 10 less than a two-digit number mentally and explain how.10 more and 10 less
- MA.1.NBT.C.6Subtract multiples of 10 within 10 to 90 using models and strategies, and explain.Subtracting tens
Operations & algebraic thinking
- MA.1.OA.A.1Solve addition and subtraction word problems within 20 with the unknown in any position.Story problems within 20
- MA.1.OA.A.2Solve word problems adding three whole numbers whose total is 20 or less.Adding three numbers
- MA.1.OA.B.3Use properties like order and grouping of addends as strategies to add and subtract.Turn-around and grouping facts
- MA.1.OA.B.4Treat subtraction as finding a missing addend.Fact families
- MA.1.OA.C.5Connect counting on and counting back to adding and subtracting.Counting on and back
- MA.1.OA.C.6Add and subtract within 20 using strategies, with fluency within 10.Adding within 20 · Subtracting within 20
- MA.1.OA.D.7Explain what the equal sign means and judge whether equations are true or false.True or false equations
- MA.1.OA.D.8Find the missing whole number in an addition or subtraction equation.Missing numbers
Measurement & data
- MA.1.MD.A.1Order three objects by length and compare two lengths using a third object.Ordering by length
- MA.1.MD.A.2Measure length by laying equal shorter units end to end without gaps or overlaps.Measuring with units
- MA.1.MD.B.3Tell and write time to the hour and half hour on analog and digital clocks.Time to the hour and half hour
- MA.1.MD.C.4Organize and read data in up to three categories and answer how-many and how-many-more questions.Tally charts and picture graphs
Geometry
- MA.1.G.A.1Separate defining from non-defining features of shapes and build or draw shapes with given features.Shape attributes
- MA.1.G.A.2Combine flat or solid shapes into a composite shape and build new shapes from it.Putting shapes together
- MA.1.G.A.3Split circles and rectangles into two or four equal shares and name halves and quarters.Halves and fourths
Summaries are ours, in plain words. The same sheets by Common Core: Grade 1.
