Grade 3-2
47 problems
Old multiplication methods
Largest and smallest product
Finding the hidden rule
Find the rule in a fraction sequence
Work backwards in fraction word problems
Find fractions meeting conditions
Find an object's weight from balance
Distinct masses weighable with given weights
Deduce weights from several balances
Find weights from mobile balance
Find the counterfeit coin by weighing
Order objects by weight from comparisons
Combine containers to hit a target capacity
Measure a target in fewest pourings
Measure a target with unmarked jugs
Build a table to enumerate cases
Logic grid deduction table
Fill a table from conditions
Combine mixed data to complete a graph
Judge claims from a line graph
Read pictographs for category totals
Sum of a rectangle in a number grid
Sum of consecutive odds and evens
Sum of consecutive numbers by pairing
Cryptarithm: Letters Stand for Digits
Recover Erased Multiplication Digits
Find a Number Meeting Digit Conditions
Build division to extremize quotient or remainder
Possible remainder values
Recover hidden digits in long division
Capstone: grid-sum and remainder conditions
Find a number from division clues
Find cells from a window-sum rule
Smallest number meeting remainder bounds
Finding the day of the week
Division applications challenge
Sequences and units-digit cycles
Trees along a road (fencepost)
Count circles in an overlapping figure
Divide a circle into min or max regions
Segments joining points on a circle
Arcs centered at polygon vertices
Perimeter of a figure enclosing circles
Diameter and radius in nested circles
Build fractions from digit cards
Compare and order fractions
Equivalent fractions from a diagram