Sixth Grade Challenging Math 
651)
A target includes 5
concentric circles with diameters of 2, 3, 4, 5 and 6 inches. Assume Jody always
hits the target. What is the probability that she hits the area between the
4inch and 6inch diameter circles?
652) Ms.
Lisa passes out strawberries to a math enrichment class students. If she
gives each student 6 strawberries, she has 28 left. If she gives each
student 8 strawberries, she has 4 left. How many students are in the
class? How many strawberries does Ms. Lisa have?
653)
A restaurant bought some rice on Sunday. Each day the restaurant used 120 pounds
of rice. After 5 days, there was 1/5 of the rice left. How many
pounds of rice did the restaurant buy on Sunday?
654) A bakery bought some flour on Monday. Each day the bakery used 60 pounds
of
flour.
After 10 days, 1/4 of the flour was remaining. How many pounds of flour
did the bakery buy on Monday?
655) The following
figure is formed with identical squares. The total area of the figure is
36cm². What is the perimeter of the figure?
656) The following
figure is formed with identical squares. The total area of the figure is
117cm². What is the perimeter of the figure?
657) A minivan travels
from City M to City N. The two cities are 380 miles apart. The minivan travels
at 50 miles per hour for the first 200 miles. It then travels the remaining 180
miles at 60 miles per hour. What is the average speed of the minivan for it's
journey from City M to City N? Write the answer in mile per hour.
658) A truck goes from City A to City B. The two cities are 500 miles
apart. The truck travels at 50 miles per hour for the first 200 miles and
stopped for 30 minutes. It then travels the remaining 300 miles at 60
miles per hour. What is the average speed of the truck for it's journey from
City A to City B? Write the answer in mile per hour.
659) What is the square root of
121, 144, 169, 196,
225, 256?
660)
9 people go to a meeting. How many hands will they shake if they all shake each
other's hands?
More challenging math problems for 6th grade: 15 610 1115 1620 2125 2630 3135
3640
4145 4650
5160
6170
7180
8190
