Rational Number Operations
5-12=?
-7
2.2-3.4=?
-1.2
You run 45 km in 6 hours. What is the unit rate in km per hour?
7.5 km per hour
The radius of a circle is 12in. What is the area of the circle? Use 3.14 for pi.
452.16 sq. in.
-1/6 + (-5/6) = ?
-1
The radius of a circle is 16cm. What is the circle's circumference? Use 3.14 for pi.
100.48 cm
-4.9+1.02=?
-3.88
The diameter of a circle is 14ft. What is the circle's area? Use 3.14 for pi.
153.86 sq ft
2 1/6 + (-1 3/4) = ?
5/12
5(4h - 3) = 145
h = 8
The circumference of the circle at the center of a basketball court is 37.68 feet. Find the area of the circle at center court. Use 3.14 for pi.
The area of the circle is 113.04 sq ft