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

### Description

Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

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

### Keywords

• Math
• Rhode Island grade 1
• Numbers and Operations in Base Ten

## More Rhode Island Topics

1.OA.7 Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

1.OA.8 Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ – 3, 6 + 6 = _.

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

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.

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.

Order three objects by length; compare the lengths of two objects indirectly by using a third object.

## Here is the skill that Rhode Island requires you to master

• Grade Level 1
• State Test PARCC
• State Standards Common Core State Standards (CCSS)
• Subject Math
• Topic Name Counting to 120
• Standard ID 1.NBT.1
• Description
Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.