# Tennessee - Grade 1 - Math - Numbers and Operations in Base Ten - Adding Within 100 - 1.NBT.4

### Description

Add a two-digit number to a one-digit number and a two-digit number to a multiple of ten (within 100). Use concrete models, drawings, strategies based on place value, properties of operations, and/or the relationship between addition and subtraction to explain the reasoning used.

### Additional Info

• State - Tennessee
• Standard ID - 1.NBT.4
• Subjects - Math Common Core
• Grade - 1

### Keywords

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

## More Tennessee Topics

Add three whole numbers whose sum is within 20 to solve contextual problems using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

Count to 120, starting at any number. Read and write numerals to 120 and represent a number of objects with a written numeral. Count backward from 20.

Subtract multiples of 10 from multiples of 10 in the range 10-90 using concrete models, drawings, strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

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

Tell and write time in hours and half-hours using analog and digital clocks.

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

• Grade Level 1
• State Test TNReady
• State Standards Tennessee State Standards
• Subject Math
• Topic Name Adding Within 100
• Standard ID 1.NBT.4
• Description
Add a two-digit number to a one-digit number and a two-digit number to a multiple of ten (within 100). Use concrete models, drawings, strategies based on place value, properties of operations, and/or the relationship between addition and subtraction to explain the reasoning used.

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Education Galaxy’s TN Ready test preparation program provides online assessment and practice for students in Grades K-6 to help build mastery towards the Tennessee Academic Standards. Our unique online program is easy to use and enjoyable for both teachers and students. Students work on their Study Plans practicing important concepts while teachers pull formative assessment reports to identify the strengths and weaknesses of their classroom and individual students.