# Arizona - Grade 1 - Math - Numbers and Operations in Base Ten - Counting to 120 - 1.NBT.1

### Description

Count to 120 by 1's, 2's, and 10's starting at any number less than 100. In this range, read and write numerals and represent a number of objects with a written numeral.

• State - Arizona
• Standard ID - 1.NBT.1
• Subjects - Math Common Core
• Grade - 1

### Keywords

• Math
• Arizona grade 1
• Numbers and Operations in Base Ten

## More Arizona Topics

Use addition and subtraction within 20 to solve word problems with unknowns in all positions (e.g., by using objects, drawings, and/or equations with a symbol for the unknown number to represent the problem).

Compose two-dimensional shapes or three-dimensional shapes to create a composite shape.

Understand that the two digits of a two-digit number represent groups of tens and ones. Understand the following as special cases: a. 10 can be thought of as a group of ten ones — called a “ten”. b. The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones. c. The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

Distinguish between defining attributes (triangles are closed and 3 sided) versus non-defining attributes (color, orientation, overall size) for two-dimensional shapes; build and draw shapes that possess defining attributes.

1.OA.4 Understand subtraction as an unknown-addend problem within 20 (e.g., subtract 10 - 8 by finding the number that makes 10 when added to 8)

1.OA.5 Relate counting to addition and subtraction (e.g., by using counting on 2 to add 2).

1.OA.6 Fluently add and subtract within 10.

## Here is the skill that Arizona requires you to master

• Grade Level 1
• State Test AzMERIT
• State Standards Arizona's College and Career Ready Standards
• Subject Math
• Topic Name Counting to 120
• Standard ID 1.NBT.1
• Description
Count to 120 by 1's, 2's, and 10's starting at any number less than 100. In this range, read and write numerals and represent a number of objects with a written numeral.