True

False

$$73.8\ ft^3$$  

$$19.7\ ft^3$$  

$$147.6\ ft^3$$  

$$147.6\ ft^2$$  

$$19.7ft^2$$  

21 inches cubed

33 inches cubed

1331 inches cubed

11 inches cubed

110cm cubed

30 cm cubed

132 cm cubed

66 cm cubed

$$150.5in^3$$

$$7525\ in^2$$

$$21.5in^3$$

$$10.8\ in^3$$

True

False

Subtract them

Divide them

Multiply them

Add them

$$100\ +\ 140\ =\ 240\ cm^3$$

$$7\ +\ 2\ +\ 20\ +\ 10+\ 5\ =\ 44cm^3$$

$$200\ +\ 140\ =\ 340\ cm^3$$

$$7\ \cdot10\ \cdot\ 2\ \cdot\ 20\ \cdot\ 5\ =\ 14000cm^3$$

Rectangular Prism and Triangular Prism

Square and Triangle

Cube and Triangular Prism

$$360\ \cdot\ 32\ =\ 392\ in^3$$

$$225\ +\ 60\ =\ 285\ in^3$$

$$\frac{1}{2}\cdot8\cdot4\cdot9\cdot5\cdot5=3600\ in^3$$

$$225\ +\ 30\ =\ 255\ in^3$$