Name
Date
A Sticky Situation
Writing Equations
In 1955, George D. Mestral invented a product that most Americans since then have used at one time or another. What is this product?
Answer:
3 × 12 = n 12 + 3 = n 16 − 12 = n 12 ÷ 3 = n 36 ÷ 3 = n 12 − 4 = n
To answer the question, write an equation for each problem. Then write the letter of the problem in the space above its equation. Let n stand for the missing numbers.
L. Joe had to complete 12 math
E. Tyrell can run a mile in 12 minutes. It takes his friend Ryan 3 minutes longer to run a mile. How long does it take Ryan to run a mile?
problems for homework. He copied his assignment incorrectly and completed 16 problems. How many extra problems did he do?
C. Danielle is selling wrapping paper to raise money for her class. The class will reach its goal if everyone sells 12 rolls. Danielle plans to reach this goal if she sells 3 rolls of paper per day. How many days will it take her to sell the wrapping paper? V. Marina is helping her teacher by cutting out circles for a class activity. There are three groups of students and each group needs a dozen circles. How many circles does Marina need to make?
O. Mike lost some of the pieces of his checkers set. He now has only 12 pieces, including 4 four red ones. How many black pieces does he have?
R. Marie and her two cousins are
planning refreshments for a family gathering. They need 3 dozen cupcakes. How many cupcakes should each girl bake if they are to bake the same amount?
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