# Math Vocab

• • # Standards for Mathematical Practice that we work on continuously throughout the year are as follows:

1. Make sense of problems and persevere in solving them.
2. Reason abstractly and quantitatively
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropraite tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning.

• ## Chapter 2 - Place Value to 100

Vocabulary

2-Digit Number
Place Value Chart
Expanded Form
Is Less Than (<)
Is Greater Than (>)
Is Equal To (=)
Estimate
Round
Halfway
Even Numbers
Odd Numbers
Count by 3s
Count by 4s
Ones Unit
Tens Rod
Hundred Flat
Value
Just Before
Just After
Between

Concepts

Tens and Ones
Place Value
Number Words 0-100

Place Value of 2-Digit Numbers
Expanded Form
Compare Numbers
Order Using a Number Line
Order Using Models
Estimate
Round to the Nearest Ten
Model Even and Odd
Even and Odd Numbers
Counting Patterns

• ## Chapter 1 - Adding & Subtracting to Twenty

• Chapter 1 Vocabulary
plus (+)
equals (=)
sum
make 10
doubles +1
doubles -1
subtract
minus (-)
difference
subtraction sentence
count up
fact family
part + part = whole
whole - part = part
doubles fact
related subtraction facts
fact family
•
• Chapter 1 Concepts

Extend Facts to 20
Doubles Facts
Doubles +1; Doubles -1
Subtraction Concepts
Count Back to Subtract
Related Subtraction Facts