1st grade math
1st grade math games, 1st grade math problems, 1st grade math worksheets, 1st grade math tests.
Find the whole number that solves the equation. Practice both addition and subtraction.
Solve word problems that call for addition of three whole numbers whose sum is less than 20.
Practice subtraction. Understand subtraction as an unknown-addend problem.
Use addition and subtraction to solve word problems up to the number 20.
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Practice for CCSS.Math.Content.1.OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.
CCSS.Math.Content.1.OA.D.7 Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Practice for CCSS.Math.Content.1.OA.D.8. Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.
Practice for CCSS.Math.Content.1.NBT.A.1. Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
Practice for CCSS.Math.Content.1.NBT.B.2 with a fun spring themed math worksheet. Understand that the two digits of a two-digit number represent amounts of tens and ones. Place value practice for 1st graders.
CCSS.Math.Content.1.NBT.B.3 Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
Use place value understanding and properties of operations to add and subtract. CCSS.Math.Content.1.NBT.C.4 Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Practice CCSS.Math.Content.1.NBT.C.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
Practice for CCSS.Math.Content.1.NBT.C.6 Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies.
Practice CCSS.Math.Content.1.MD.A.1 Order three objects by length; compare the lengths of two objects indirectly by using a third object.
Practice CCSS.Math.Content.1.MD.A.2. Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end.
Learning to tell time. Practice CCSS.Math.Content.1.MD.B.3. Tell and write time in hours and half-hours using analog and digital clocks.
