Use place value understanding and properties of operations to add and subtract.

Number and Operations in Base Ten

Use place value understanding and properties of operations to add and subtract.

Number and Operations in Base Ten

Delaware DOE

Last updated:

2013-06-20 08:46:01

Resources cannot be aligned to this standard, browse sub-standards to find lessons.

- This standard is part of: CCSS.Math.Content.1.NBT
- This standard is derived from: CCSS.Math.Content.1.NBT.C

Finer grained standards that are part of this one

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; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

Delaware DOE

Last updated:

2013-06-20 08:46:01

Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

Delaware DOE

Last updated:

2013-06-20 08:46:01

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 based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Delaware DOE

Last updated:

2013-06-20 08:46:01

Standards with the same topic and subject but for other grades

Use place value understanding and properties of operations to add and subtract.

Delaware DOE

Last updated:

2013-06-20 08:46:20

Use place value understanding and properties of operations to perform multi-digit arithmetic.

Delaware DOE

Last updated:

2013-06-20 08:47:00

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (e.g., 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

Delaware DOE

Last updated:

2013-06-20 08:45:42

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:

Delaware DOE

Last updated:

2013-06-20 08:46:20

Use place value understanding to round whole numbers to the nearest 10 or 100.

Delaware DOE

Last updated:

2013-06-20 08:46:40

Standards derived from the same national standard

Use place value understanding and properties of operations to add and subtract.

North Carolina DOE

Last updated:

2015-06-23 09:57:13

Number & Operations in Base Ten: Use place value understanding and properties of operations to add and subtract.

Colorado DOE

Last updated:

2018-10-09 18:03:04

Use place value understanding and properties of operations to add and subtract.

Vermont DOE

Last updated:

2013-06-21 08:28:11

Use place value understanding and properties of operations to add and subtract.

Rhode Island DOE

Last updated:

2013-06-20 15:53:12

North Dakota DOE

Last updated:

2015-04-08 13:03:28

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