Standard Alignments:

TEKS Math: 3.2.C

(C) Represent a number on a number line as being between two consecutive multiples of 10; 100; 1,000; or 10,000 and use words to describe relative size of numbers in order to round whole numbers

AU Math: ACMNA099

(Y5) Use estimation and rounding to check the reasonableness of answers to calculations (ACMNA099)

CCSS Math: 3.OA.8

3.OA.8 Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

Related Lessons

Interpret Multiplication as Groups of Objects
Interpret Division as Groups of Objects
Memorize Multiplication Facts
Use Equal Sharing
Solve Two-Step Word Problems (Addition & Subtraction)
Use Multiplication Patterns
Use Repeated Subtraction to Divide
Use Repeated Addition to Multiply
Use the Associative Property of Multiplication
Memorize the Multiplication Facts for 2
Memorize Multiplication Facts (Products over 45)
Solve Two-Step Word Problems with an Unknown (4 Operations)
Determine how Multiplication and Division are Related
Use Arrays (Multiplication)
Memorize the Multiplication Facts for 5
Memorize the Multiplication Facts for 10
Solve Multiplication Word Problems
Solve Two-Step Word Problems (Multiplication & Division)
Use Groups to Multiply (Associative Property)
Determine the Unknown in Division
Determine the Unknown in Multiplication
Use the Commutative Property to Multiply
Use Operation Symbols to Check an Answer (Multiplication-Division)
Memorize Division Facts 1-10
Use Operation Symbols to check an answer (add -sub)
Division Sequence
Multiplication Sequence
Flashcards Add One-Digit Numbers

Related Concepts

Solve Subtraction Equations
Use Fact Families
Add Numbers by Counting Up
Memorize Subtraction Facts
Solve Addition Equations
Write Subtraction Equations
Create Story Problems (Addition & Subtraction)
Write Addition Equations
Memorize Addition Facts
Subtract Numbers by Counting Down
Grade 1 Common Core State Standards Learning Objectives - Math
Add Three Numbers
Texas Learning Objectives Math (1st Grade)
Grade 1 StepUp Academy (4 Week Program)
Add With Two-Digit Numbers Within 20
Add Two-Digit Numbers (With Composing)
Add in Any Order
Use Groups to Add
Missouri Learning Standards Math (1st Grade)
Addition and Subtraction Clue Words Poster
Different Ways to Add Poster
Different Ways to Subtract Poster
Solve Addition Equations
Solve Subtraction Equations
Write equations that equal odd or even numbers (subtraction)
Add Two-Digit Numbers (With Composing)
Subtract Two-Digit Numbers (With Decomposing)
Add Three-Digit Numbers (With Regrouping)
Use Arrays (Addition)
Add Up To Four Two-Digit Numbers