Unknown Factor Problems with BBQ

Description: Understand division as an unknown-factor problem. This is a common core exercise.

Tags: 3rd grade math, Division, CCSS.Math.Content.3.OA.B.6

Question 1 (Short Answer, 10 points)

Find the missing number: ___ × 7 = 42. What is 42 ÷ 7?

Real World: You need to cook 42 hot dogs, but only 7 fit on your grill at a time.  How many sets of hot dogs will you grill?






Question 2 (Short Answer, 10 points)

If 6 × ___ = 54, what is 54 ÷ 6?

Real World: You will make kebobs with cherry tomatoes.  You have 54 cherry tomatoes and 6 skewers.  How many cherry tomatoes can you put on each skewer?






Question 3 (Short Answer, 10 points)

What number multiplied by 9 gives 72? Calculate 72 ÷ 9.




Question 4 (Short Answer, 10 points)

Determine the missing factor: ___ × 5 = 35. What is 35 ÷ 5?




Question 5 (Short Answer, 10 points)

Find the number that, when multiplied by 8, equals 64. What is 64 ÷ 8?




Question 6 (Short Answer, 10 points)

If 4 × ___ = 28, what is 28 ÷ 4?




Question 7 (Short Answer, 10 points)

What number, when multiplied by 3, equals 21? Calculate 21 ÷ 3.




Question 8 (Short Answer, 10 points)

Find the missing factor: ___ × 10 = 90. What is 90 ÷ 10?




Question 9 (Short Answer, 10 points)

What number, when multiplied by 11, gives 99? Calculate 99 ÷ 11.




Question 10 (Short Answer, 10 points)

Determine the missing number: ___ × 2 = 18. What is 18 ÷ 2?

Real World: You and your friend need to sell 18 burgers in total.  If you split those into 2, how many burgers do you each need to sell?








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