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IntroductionGT package Math Olympiad
Math Olympiad 1
Math Olympiad 2
Math Olympiad 3
Math Olympiad 4
Week 1: 7-Segment Display ProblemsWeek 2: Matchstick ProblemsWeek 3: Division & Divisibility (1)Week 4: Caculation ShortcutsWeek 5: Quiz 1Week 6: Word Problem (1)Week 7: Multiples & FactorsWeek 8: Fractions & DecimalsWeek 9: Distance Problems (1)Week 10: Quiz 2Week 11: Roman NumeralsWeek 12: MeasurementWeek 13: Sum, Difference & Multiple (1)Week 14: Least & MostWeek 15: Quiz 3Week 16: Number Sense Week 17: Shape CountingWeek 18: Counting ProblemWeek 19: Fraction & Decimals (2)Week 20: Quiz 4Week 21: Average ProblemsWeek 22: Purchase & Sale Problems Week 23: Number Thinking(1)Week 24: Proportion & Ratio ProblemsWeek 25: Quiz 5Week 26: Mid-Term ExamWeek 27: Number PatternWeek 28: Calendar ProblemWeek 29: Number SequencesWeek 30: Pattern ProblemsWeek 31: Quiz 6Week 32: Age ProblemsWeek 33: Money ProblemWeek 34: Division & Divisibility (2)Week 35: GeometryWeek 36: Quiz 7Week 37: Sum, Difference & Multiple (2)Week 38: Calculation Shortcuts (2)Week 39: Combination ProblemsWeek 40: Percentage ProblemWeek 41: Quiz 8Week 42: Number SubstitutionWeek 43: Work ProblemWeek 44: Word Problems (2)Week 45: Number Thinking2Week 46: Quiz 9Week 47: Proportion & Ratio Problems(2)Week 48: Distance Problems (2)Week 49: Probability & CombinationsWeek 50: Challenge ProblemsWeek 51: Quiz 10Week 52: Final Exam
Math Olympiad 5
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7-Segment Display Problems( Week 1 Evaluation)
1.  Below are the numbers from 0 to 9, + − and = signs made of line segments.
Please correct the following equation by adding Only one segment to the equation and write your corrected equation (only one is needed) in the blank (such as 1+2=3).
2.  Below are the numbers from 0 to 9, + − and = signs made of line segments.
Please correct the following equation by adding Only one segment to the equation and write your corrected equation (only one is needed) in the blank (such as 1+2=3).
3.  
The figure above shows decimal numerals displayed in seven-segment display. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively. What is the smallest two-digit number that can be displayed with a total of 13 segments in a seven-segment display?
4.  
The figure above shows decimal numerals displayed in seven-segment display. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively. What is the smallest three-digit number that can be displayed with a total of 8 segments in a seven-segment display?
5.  
The figure above shows decimal numerals displayed in seven-segment display. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively. What is the largest three-digit number that can be displayed with a total of 7 segments in a seven-segment display?
6.  
The figure above shows decimal numerals displayed in seven-segment display as well as the smallest and largest time stamps displayed in 12-hour digital clocks with seven-segment display. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively. There are a total of 10 segments used to display the time stamp below. What is the largest time stamp that can be displayed with 10 segments? Type the time stamp in the format of (H)H:MM, for example 1:23.
7.  
The figure above shows decimal numerals displayed in a seven-segment display as well as the smallest and largest time stamps displayed in 12-hour digital clocks with seven-segment displays. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively. There are a total of 14 segments used to display the time stamp below. There are 100 time stamps total that can be displayed each with a total of 14 segments. What are the smallest and the largest time stamps that can be displayed with 14 segments? Type them in the format of (H)H:MM by separating them with a space, for example 1:23 12:17.
8.  
The figure above shows decimal numerals displayed in a seven-segment display as well as plus(+), minus(-) and equal (=) signs. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively, while the plus, minus and equal signs displayed with 2, 1 and 2 segments. There are a total of 4 segments used to display the following incorrect equation. Please correct the equation by moving exact ONE segment. Type the correct equation as example of 1+2=3.
9.  
The figure above shows decimal numerals displayed in a seven-segment display as well as plus(+), minus(-) and equal (=) signs. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively, while the plus, minus and equal signs are displayed with 2, 1 and 2 segments respectively. There are a total of 4 segments used to display the following incorrect equation. Please correct the equation by moving exact ONE segment. Type the correct equation as example of 1+2=3.
10.  
The figure above shows decimal numerals displayed in a seven-segment display as well as plus(+), minus(-) and equal (=) signs. The digits from 0 to 9 are displayed with 6, 2, 5, 5, 4, 5, 6, 3, 7, and 6 segments respectively, while the plus, minus and equal signs are displayed with 2, 1 and 2 segments respectively. There are a total of 3 segments used to display the following incorrect equation. Please correct the equation by moving exact ONE segment. Type the correct equation as example of 1+2=3.



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