M.2.NBT.1.b

The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight or nine ones.

The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight or nine ones.

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.

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

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.

The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

Multiples of 100 represent a number of hundreds, 0 tens, and 0 ones.

The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).