AR.Math.Content.4.NBT.A.1

Understand that the four digits of a four-digit number represent amounts of thousands, hundreds, tens, and ones (e.g., 7,706 can be portrayed in a variety of ways according to place value strategies). Understand the following as special cases: 1,000 can be thought of as a group of ten hundreds—called a thousand; the numbers 1,000, 2,000, 3,000, 4,000, 5,000, 6,000, 7,000, 8,000, 9,000 refer to one, two, three, four, five, six, seven, eight, or nine thousands.

Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 726 equals 7 hundreds, 2 tens, and 6 ones. Understand that 100 can be thought of as a group of ten tens—called a "hundred." Understand that the numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine groups of 100.

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

Develop initial understanding of place value and the base-ten number system by showing equivalent forms of whole numbers from 11 to 19 as groups of tens and ones using objects and drawings.

Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.

Demonstrate an understanding that in a multi-digit whole number (through 1,000,000), a digit in one place represents ten times what it represents in the place to its right.

Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.

Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.

Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.