Equations with the Number 2

Omar is painting a 30-square-foot wall. The wall is divided into squares that each measure 1/5 square foot. What equation can you use to check the answer for the number of squares in the wall?

• @@rac{30}{rac{1}{5}}@@

• @@30 imes rac{1}{5} = 150@@

• @@30 imes 5 = 150@@

• @@30 + rac{1}{5} = 30@@

_________ a whole number by a unit fraction is the same as ___________ a whole number by the ____________ of the unit fraction

• Dividing a whole number by a unit fraction the same as multiplying a whole number by the denominator of the unit fraction

• Dividing a whole number by a unit fraction the same as adding a whole number to the numerator of the unit fraction

• Dividing a whole number by a unit fraction the same as subtracting a whole number from the denominator of the unit fraction

• Dividing a whole number by a unit fraction the same as multiplying a whole number by the numerator of the unit fraction

A team of students acquired 30 yards of fabric to craft flags for a sports day. Each flag requires @@rac{1}{3}@@ yard of fabric. If the students have already made 40 flags from the fabric, how many more flags can they still make?

• 40 flags

• 50 flags

• 60 flags

• 70 flags

Sarah has 15 balls of yarn to crochet a blanket. She uses 1/5 ball of yarn for each square inch of the blanket. If Sarah uses all the yarn, how large will the blanket be?

• 60 square inches

• 75 square inches

• 90 square inches

• 100 square inches

5 ÷ 3

• 1 @@\frac{2}{3}@@

• 1 @@\frac{1}{2}@@

• 2 @@\frac{1}{3}@@

• 1 @@\frac{3}{5}@@

3 ÷ 5

• @@rac{3}{5}@@

• @@rac{5}{3}@@

• @@rac{1}{2}@@

• @@rac{3}{2}@@

Explain how to write a mixed number as a division expression.

• First, write the mixed number as an improper fraction. Then use the numerator as the dividend and the denominator as the divisor in the division expression.

• Convert the mixed number to a decimal and then divide by 1.

• Multiply the whole number by the denominator and add the numerator, then divide by the denominator.

• Write the mixed number as a fraction and then multiply the numerator by the denominator.

One third of a pie was shared equally among 4 people.

• @@rac{1}{12}@@ of the whole pie

• @@rac{1}{8}@@ of the whole pie

• @@rac{1}{6}@@ of the whole pie

• @@rac{1}{4}@@ of the whole pie

Jillian thinks that 1 @@\frac{3}{4}@@ equals 4 @@\div@@ 6.

• 1 @@\frac{7}{4}@@

• 1 @@\frac{1}{2}@@

• 1 @@\frac{3}{2}@@

• 1 @@\frac{5}{4}@@