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Third Grade Challenging Math

3-16)  Lincoln Elementary school has four 3rd grade classes.  Each class has 22 students.  At the end of the school year, 5 students transferred to another school.  How many students are left in the 3rd grade at the end of school year?



3-17)  Fill in the blanks.

         11 x __ = 121

          __ x 12 = 144



3-18) Find the pattern and fill in the blanks.

(2, 3), (4, 6), (6, 9), (8, 12) ....

The 5th group is (__, __)

The 8th group is (__, __)



3-19)  How many triangles are there below?


3-20)  Of all the numbers between 10 and 99 inclusive, how many times does the digit "1" appear?



More challenging math problems for third grade: 
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Free challenging math problems for Kids (1st grade, 2nd grade, 3rd grade, 4th grade, 5th grade, 6 grade and 7th grade)
This site contains first through seventh grade free math problems with answers that help you with math competitions. Brain teasers, hard math problems that you can practice to prepare for math contests or math competitions such as Math Olympiad Contest, Math Super Bowl and Math Counts

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