Fifth Grade Challenging Math
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5-71) Five
people go to a meeting. 2 people are from 1 company and 3 are from another. How
many hands will they shake if they only shake hands with the people from the
other company?
5-72) A wooden fence has posts 1 meter apart with one post on each end. If
the length of the fence is 100 meters, how many posts are there?
5-73) A pool has a circular shaped fence with a circumference of 100 meters. The
posts of the fence are 1 meter apart. How many posts are needed?
5-74) Tom is reading a 600 page
book. He read 80%. How many pages are left?
5-75) A swimming pool is
filled with 1,000 gallons of water. Then 40% of the water is drained out. a) How
many gallons are left? b) The next day, 2/3 of the remaining water is drained.
How much is left?
5-76) Tom feed his chickens with grains on Sunday. The chickens ate a quarter of
what was given to them that day. On Monday, the chickens ate a quarter of what's
left on Sunday night. What fraction of the original food was left on Monday
night after the chickens went to bed?
5-77) The sum of two integers is 9,
and the sum of the squares of these two integers is 41. What is the product of
the two integers?
5-78) Josh
is 5 feet 1 inch. He grows 2 inches a year in the next 4 years. How tall
will Josh be in two years? Answer in inches.
More challenging math problems for fifth grade: 1-5
6-10
11-15
16-20
21-25
26-30
31-35
36-40
41-45
46-50
51-60
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