# Grade 3

## Building Shelves 2

Directions: Using the digits 1 to 9 at most one time each, fill in the question marks to make the following problem true. Ricky is building ? sets of shelves for the office. It takes him ? ? minutes to do each set of shelves. He’ll be done building the sets in ? hours and ?? minutes. Source: Chase Orton

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## Building Shelves 1

Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to make the following problem true. Ricky is building ? sets of shelves for the office. It takes him ? ? minutes to do each set of shelves. He’ll be done building the sets in ? hours. Source: Chase Orton

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## It’s About Time 1

Directions: Using the digits 0 to 9 at most one time each, fill in the question marks to make the following problem true. Suzie leaves work at ? : ? ?. She get’s home at ? : ? ?. Therefore, her commute is ? ? minutes long. Source: Chase Orton

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## Close to 1000

Directions: Using the digits 1 to 9 exactly one time each, place a digit in each box to make the sum as close to 1000 as possible. Source: John Ulbright and Robert Kaplinsky

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## Interpreting Graphs

Directions: Using the digits 1 to 6 at most one time each, fill in the boxes to create a graph and fill in the blanks to make them true. Source: Bryan Anderson

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## How Many Numbers Are There?

Directions:  How many numbers are between 1 and 3? Source:  Robert Kaplinsky

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## Biggest Rectangle

Directions: Find the largest area for the rectangle filling the boxes with numbers 1 through 9. You may use a digit at most once. Source: Nanette Johnson, Inspired by Mike Chamberlain’s Problem

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## Multiplying a Two-Digit Number by a Single-Digit Number

Directions: Using the digits 1 to 4 at most one time each, fill in the boxes to make the largest possible product. Source: Robert Kaplinsky

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## Greatest Difference of Two Rounded Numbers

Directions: Using the digits 0 through 9, find two numbers that round to 500, and have the greatest possible difference. Each digit can only be used once. Source: Michael Wiernicki, Graham Fletcher, and Rachel Nelli.

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## Subtraction to Get the Smallest Difference

Directions: Using the digits 1 to 9, at most one time each, fill the boxes below to create the smallest possible difference. Source: Graham Fletcher

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