Free Grade 1 Math Worksheets — 21 Topics

Operations & Algebraic Thinking OA

1.OA.A.1 Add and subtract within 20 to solve word problems; unknown in any position.

1.OA.A.2 Word problems that add three whole numbers with a sum within 20.

1.OA.B.3 Use properties of operations (order, grouping) to add.

1.OA.B.4 Subtraction as an unknown-addend problem.

1.OA.C.5 Relate counting to addition and subtraction (count on, count back).

1.OA.C.6 Add and subtract within 20; fluent within 10; making ten, doubles.

1.OA.D.7 Meaning of the equal sign; true or false equations.

1.OA.D.8 Find the unknown number in an addition or subtraction equation.

Number & Operations in Base Ten NBT

1.NBT.A.1 Count to 120; read and write numerals.

1.NBT.B.2 The two digits of a two-digit number are tens and ones.

1.NBT.B.3 Compare two-digit numbers with >, = and <.

1.NBT.C.4 Add within 100: two-digit + one-digit, two-digit + a multiple of 10.

1.NBT.C.5 Find 10 more or 10 less than a two-digit number mentally.

1.NBT.C.6 Subtract multiples of 10 in the range 10–90.

Measurement & Data MD

1.MD.A.1 Order three objects by length; compare two lengths using a third.

1.MD.A.2 Length as a number of same-size units laid end to end.

1.MD.B.3 Tell and write time in hours and half-hours.

1.MD.C.4 Organize and interpret data with up to three categories.

Geometry G

1.G.A.1 Defining vs non-defining attributes of shapes.

1.G.A.2 Compose two- and three-dimensional shapes.

1.G.A.3 Partition circles and rectangles into halves and fourths.