| Mathematical Practices: 1. Make sense of problems and persevere in solving them. 2. Reason abstractly and quantitatively. 3. Construct viable arguments and critique the reasoning of others. 4. Model with mathematics. 5. Use appropriate tools strategically. 6. Attend to precision. 7. Look for and make use of structure. 8. Look for and express regularity in repeated reasoning. | Common Core Mathematics | Grade 1 | Mathematical Practices | |
| Mathematical Practices: 1. Make sense of problems and persevere in solving them. 2. Reason abstractly and quantitatively. 3. Construct viable arguments and critique the reasoning of others. 4. Model with mathematics. 5. Use appropriate tools strategically. 6. Attend to precision. 7. Look for and make use of structure. 8. Look for and express regularity in repeated reasoning. | Common Core Mathematics | Grade 2 | Mathematical Practices | |
| 2.NBT.1. Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: | Common Core Mathematics | Grade 2 | Number And Operations In Base Ten | Understand Place Value |
| 2.NBT.2. Count within 1000; skip-count by 5s, 10s, and 100s. | Common Core Mathematics | Grade 2 | Number And Operations In Base Ten | Understand Place Value |
| 2.NBT.3. Read and write numbers to 1000 using base-ten numerals, number names, and expanded form. | Common Core Mathematics | Grade 2 | Number And Operations In Base Ten | Understand Place Value |
| 2.NBT.5. Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. | Common Core Mathematics | Grade 2 | Number And Operations In Base Ten | Use Place Value Understanding And Properties Of Operations To Add And Subtract |
| 2.NBT.7. Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three- digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds. | Common Core Mathematics | Grade 2 | Number And Operations In Base Ten | Use Place Value Understanding And Properties Of Operations To Add And Subtract |
| 2.NBT.8. Mentally add 10 or 100 to a given number 100?900, and mentally subtract 10 or 100 from a given number 100?900. | Common Core Mathematics | Grade 2 | Number And Operations In Base Ten | Use Place Value Understanding And Properties Of Operations To Add And Subtract |
| Mathematical Practices: 1. Make sense of problems and persevere in solving them. 2. Reason abstractly and quantitatively. 3. Construct viable arguments and critique the reasoning of others. 4. Model with mathematics. 5. Use appropriate tools strategically. 6. Attend to precision. 7. Look for and make use of structure. 8. Look for and express regularity in repeated reasoning. | Common Core Mathematics | Grade 3 | Mathematical Practices | |
| 3.NBT.2. Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction. | Common Core Mathematics | Grade 3 | Number And Operations In Base Ten | Use Place Value Understanding And Properties Of Operations To Perform Multi-Digit Arithmetic.4 |
| Mathematical Practices: 1. Make sense of problems and persevere in solving them. 2. Reason abstractly and quantitatively. 3. Construct viable arguments and critique the reasoning of others. 4. Model with mathematics. 5. Use appropriate tools strategically. 6. Attend to precision. 7. Look for and make use of structure. 8. Look for and express regularity in repeated reasoning. | Common Core Mathematics | Grade 4 | Mathematical Practices | |
| 4.NBT.4. Fluently add and subtract multi-digit whole numbers using the standard algorithm. | Common Core Mathematics | Grade 4 | Number And Operations In Base Ten2 | Use Place Value Understanding And Properties Of Operations To Perform Multi-Digit Arithmetic |
