Sixth Grade Challenging Math 
671) Maya wants to make a table cloth that measures 5 feet wide and 6 feet
long. If the fabric she wants costs $3 per square yard, how much does Maya
need to pay for the fabric? Assume no fabric is wasted.
672) A
bicycle that costs $120 is now on sale at 20% off.
If sales tax is 8%, what is the final cost of this bicycle including sales tax?
673) Tennis shoes have a "buy one
pair and get the 2nd pair for half the price" sale. If the original price
for one pair is $80, and sales tax is 7.5%, how much does a customer pay for two
pairs of tennis shoes?
674) Kaley made a rectangular
vegetable bed that measures 4 feet by 6 feet. Then she increased both its
width and length by 20%. How much has the bed's area increased in
percentage?
675) If the diameter of a circle
increases by 10%, how much does its area increase?
676) If the sides of a square increase by 1/3, how much does its area increase?
Express your answer in a fraction.
677) If the sides of a cube
increases by 10%, how much does its volume increase?
678) If the diameter of a cylinder
increases by 10%, how much does its volume increase?
679) What is 75% of 1/4? Express
your answer in a fraction.
680) What is 1/3 of negative
50%? Express your answer in a fraction.
More challenging math problems for 6th grade: 15 610 1115 1620 2125 2630 3135
3640
4145 4650
5160
6170
7180
8190
