# 1st Grade Common Core: 1.OA.1a

Common Core Identifier: 1.OA.1a / Grade: 1
Curriculum: Operations And Algebraic Thinking: Represent And Solve Problems Involving Addition And Subtraction.
Detail: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
23 Common Core State Standards (CCSS) aligned worksheets found:
This set of Math Buzz worksheets has more place value questions, coin identification (dime and quarter), some 10 more/10 less problems, and simple addition with three addends.
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Count by 10s. Then solve four basic addition and subtraction word problems.
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Here are five more first grade-level word problems for your students to solve.
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This file has 5 word problems, one for each day of the week. All problems require basic addition and subtraction and feature very simple vocabulary. If you prefer a full-color poster version of the problems, please click the "Alt" button below.
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Draw hands on a clock. Find related math facts. Add using place value blocks. Solve addition/subtraction word problems. Find the sum of three single-digit addends.
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Add and subtract to find the answers to math questions about hot dogs, triangles, toy cars, books, and toy tops.
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Solve five more simple addition and subtraction problems with simple, easy-to-read vocabulary.
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Use non-standard units to compare lengths of a guitar and a drum. Use place value blocks to solve subtraction and addition problems. Answer questions about a bar graph. Draw hands on a clock.
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This file contains a dozen word problems. Each one requires children to add or subtract.
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Demonstrate knowledge of place value (tens and ones), coin identification (penny), comparing measurements in non-standard units, identifying halves, and solving word problems.
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Color the date on a calendar. Measure a marker with non-standard units. Compare two digit numbers using <, >, and =. Solve basic addition and subtraction word problems.
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These daily word problems require simple addition and subtraction skills.
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Review fact families, telling time on analog clocks, 3D shapes, and US coin identification.
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On these worksheets, students will answer more simple word problems. These include bats, jelly jars, camping, foxes, and calendars.
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This file contains the next 5 word problems in the first grade set. All word problems have easy-to-read words, and require only basic addition and subtraction skills.
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Add and using place value blocks. Solve addition and subtraction word problems. Draw hands on an analog clock (nearest hour). Identify flat faces of a cylinder.
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These illustrated math stories require students to find simple sums and differences.
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Use addition and subtraction to find the answers to the next 5 daily word problems. One of the problems requires two steps.
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Practice addition problems with missing addends, comparing sizes (shorter, longer), drawing lines to divide a shape into quarters, add and subtract double-digit numbers, and make a pictograph based on data in a tally table.
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Here are five more addition/subtraction word problems for 1st graders. Themes include horses, sandcastles, pie, pirates, and kittens.
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Skills in this set include ordering numbers, operations, and very basic repeated addition.
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Find 10 more and 10 less than a given number. Solve a column addition problem (2-digit plus 1-digit). Identify flat surfaces of a cone. Measure a pencil and crayon with non-standard units.
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