Number Sense
Third Grade

STATE GOAL 6: Demonstrate and apply a knowledge and sense of numbers, including numeration and operations (addition, subtraction, multiplication, division), patterns, ratios and proportions.    
Topics Mastered

Resources           

  • Place value to 100,000 (read and write)
  •  Addition and subtraction of 3-digit numbers with regrouping
  • Know multiplication as repeated addition or as displayed in an array
  • Multiplication facts 0-10
  • Multiply 2 digits by 1 digit multiplier
  • Compare and order numbers to 100,000
  • Compare and order simple fractions using concrete and pictorial representations of rectangular models
  • Place fractions on a number line
  • One and two step problems with whole numbers
  • Estimation
 

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Math Facts

Students will be able to demonstrate:  
  • reading and writing place value to 100,000
  • solving addition and subtraction problems with whole numbers to 1,000 with regrouping
  • memorizing multiplication facts 0-10
  • multiplying a 2 digit number by 1 digit number
  • comparing and ordering fractions using concrete and pictorial representations of rectangular models
  • identifying and locating whole numbers and halves on a number line
  • solving one and two step problems with whole numbers
  • estimating answers to whole number operations (addition, subtraction, and multiplication)
 
Topics Introduced
  • Know division as repeated subtraction or as represented in sharing or measurement problems
  • Division with 1 digit divisors 0-10
  • Division with 1 digit divisors with remainders
  • Rounding
 
Students will practice:  
  • dividing with 1 digit divisors 0-10
  • dividing with 1 digit divisors with a remainder
  • rounding to the nearest 10 in a three digit number
  • rounding to the nearest hundred in a three digit number

 

 

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Last updated September 2005
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