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Module 4

Place Value, Comparison, Addition, and Subtraction to 40
 

Overview

Throughout this Module, students will:
  • focus on the role of place value when adding and subtracting numbers to 40
  • represent numbers to 40 in a variety of ways
  • use a place value chart to organize units
  • Identify 1 more, 1 less, 10 more, 10 less
  • compare quantities using greater than (>) and less than (<) symbols
  • add and subtract multiples of 10
  • add two-digit and single-digit numbers within 40

Vocabulary

Terminology Definition Illustration
Greater Than  Used to compare two numbers when the first number is larger than the second number
     
Less Than Used to compare two numbers when the first number is smaller than the second number
     
Place Value The value a digit has because of its place in a number

quick tens and ones 1.4 from JD K-4 Math on Vimeo.

1 more or 10 more from JD K-4 Math on Vimeo.

1 less or 10 less from JD K-4 Math on Vimeo.

arrow notation from JD K-4 Math on Vimeo.

tape diagram from JD K-4 Math on Vimeo.


DISTRICT

OUR SCHOOLS




Dr. Peter Smith, Superintendent

P.O. Box 606
DeWitt, NY 13214

Phone: (315) 445-8300
www.jamesvilledewitt.org


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