Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) quotient. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky
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Multiplying Decimals (Middle School)
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) product. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky
Read More »Dividing Two-Digit Numbers (Middle School)
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) quotient. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky
Read More »Adding Two-Digit Numbers (Middle School)
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) sum. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky
Read More »Subtracting Two-Digit Numbers (Middle School)
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) difference. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky
Read More »Multiplying Two-Digit Numbers (Middle School)
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) product. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky
Read More »Highest Degree Polynomials
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make a polynomial of the highest degree. Source: Robert Kaplinsky
Read More »Interpreting Percentages
Directions: What is the fewest number of people surveyed if exactly 93.6% of people completed a survey? Source: Robert Kaplinsky
Read More »Rolling with the Same Probability
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to complete this sentence: Rolling a sum of ___ on two ___-sided dice is the same probability as rolling a sum of ___ on two ___-sided dice. Source: Audrey Mendivil, Daniel Luevanos, and Robert Kaplinsky
Read More »Placing Fractions on A Number Line
Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to create five fractions and place them all on a number line with the correct order and spacing. Source: Robert Kaplinsky
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