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Math Fundamentals
operations with numbers
number sense
number theory
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Place Value
These problems encouraage students to develop their place value sense.

Related Resources
Interactive resources from our Math Tools project:
   Math 4: Number Sense
The closest match in our Ask Dr. Math archives:
   Elementary Place Value
NCTM Standards:
   Number and Operations Standard for Grades 3-5

Access to these problems requires a Membership.

Five Digits of Fun - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 4. Find a five-digit number based on these clues. ... more>>

Four Playful Mathematicians - inspired by Maria Fung's class at Western Oregon
teacher support Math Fundamentals, difficulty level 2. Follow the clues to help the four playful mathematicians return the lost watch. ... more>>

How Safe Is Your Bike? - Chief Brian Craig and Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 3. Compare the bicycle theft rates in three different cities. ... more>>

Multiplication Mystery - Ya. I. Perelman (translated from Russian by Valentina Sokolskaya)
active problem Math Fundamentals, difficulty level 3. Decipher this cryptic multiplication problem to uncover the final product. ... more>>

The Place Value Game - Kristina Lasher
teacher support active problem Math Fundamentals, difficulty level 2. Help Sylvia and Carina think about winning numbers in the Place Value Game. ... more>>

Pondering Palindromes - Mary DeYoung & class
teacher support active problem Math Fundamentals, difficulty level 1. Explore 4-digit palindromes and find something else they have in common. ... more>>

The Sum of Four Numbers - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 1. Determine the truth about four numbers, given some information about their sum. ... more>>

Victoria in Bloom - Claire Mead
teacher support active problem Math Fundamentals, difficulty level 2. Find combinations of trees and/or shrubs that could have totaled 2,005,500 blossoms in the park in Victoria. ... more>>

Zero Dates - Stephen Maurer
teacher support active problem Math Fundamentals, difficulty level 2. Travel in time to think about dates with zeros. ... more>>

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