6.4 Review

What other expressions represent the shaded region?

• 3/4 X 5

• 15/4

• 3/20

• 3 3/4

• The number of total cubes would change because we would have to multiply 4 x 4 x 4 = 64. The shape would be the same size.
• The number of total cubes wouldn’t change because we would still multiply 4 x 4 x 5 = 80. The shape would be much bigger because centimeters are bigger than inches. 
• The number of total cubes wouldn’t change because we would still multiply 4 x 4 x 5 = 80. Centimeters are smaller than inches.  Overall the volume would be smaller and the shape would take up more  3-dimensional space. 
• The number of total cubes wouldn’t cange because we would still multiply 4 x 4 x 5 = 80. However, the shape would be much smaller because centimeters are smaller than inches.  Overall the volume would be smaller and the shape would take up less  3-dimensional space. 

What is the area of this shape?

• 18 square units
• 18 units
• 63 units
• 10 square units

Length= 1/2 in

Width= 2/3 in

Find the area of the shaded columns and rows combined.

• 
  

  $\frac{9}{20}$ square inches
  

• $\frac{12}{15}$ square inches

• $\frac{4}{5}$ square inches

• $\frac{9}{10}$ square inches

Carolina planted seeds in a box that measured  $\frac{7}{8}$    meter long and  $\frac{3}{5}$   meter wide. What is the area of the garden box?

• 
  

   $\frac{10}{13}$  square meter

•  $\frac{24}{35}$  square meter

•  $\frac{21}{40}$   square meter

•  $\frac{35}{50}$   square meter

Jayden's rectangular garden is  $5\ \frac{3}{4}$  feet long and  $4\ \frac{1}{2}$   feet wide. What is the area, in square feet, of the garden?

•  $9\ \frac{4}{6}$   square feet

•  $20\ \frac{2}{4}$   square feet

•   $20\ \frac{3}{8}$  square feet

•  $25\ \frac{7}{8}$   square feet

• 2 x 3 x 4 =24 units cubed
• 3 x 2 x 5 = 30 units cubed  
• 2 x 5 = 10 units squared
• 5 x 6 x 2 = 60 units cubed

When multiplying mixed numbers, the math law is to ALWAYS?

• Multiply the mixed numbers
• Change the mixed numbers to improper fractions
• Add the mixed numbers
• Subtract the mixed numbers