IMO (International Math Olympiad) CLASS - 5 Complete course

Practice solving five math problems that cover unit conversion from feet to fathoms, prime identification, comparing expressions, a star-value from multiples of seven, and solving linear equations by substitution.

Apply the bodmas concept to evaluate expressions with division, multiplication, and addition. Practice rounding to the nearest hundred, estimating sums, and analyzing multiples, divisibility, quotients, and remainders.

Learn to add shaded fractions from two figures using cross-multiplication, obtain 27/40, and compare mixed fractions by converting to improper form, subtracting, yielding 1 5/12.

Count eight equal parts to identify four shaded parts, giving 1/2, then solve 2 2/5 + x = 3 3/10 to get x = 9/10.

Determine that 15 of the 25 hexagon shapes are shaded, since 2/5 are unshaded. Order fractions from least to greatest using a common denominator to obtain 2/6, 3/6, 4/6.

Convert decimals, compute the difference between 9.8 and 5.80, then divide 31.64 by 4 to get 7.91, and solve for x where x/5 = 1.25, so x = 6.25.

Identify equivalent fractions by comparing 1/2, 2/4, and 3/6, then compute the days Muncy practices by dividing 15/2 by 3/2 hours to get five days.

Compute the weight of one cup of sugar from four cups, determine how much heavier a glass weighs, and convert five two-thirds hours into minutes.

Relates two problems: compute the total capacity of three tanks by multiplying 49 5/6 liters and converting to a mixed fraction, then solve a 1.8 m red-white pole totaling 7.2 m.

Master IMO grade 5 problem solving with decimal length measurement, marker p and q, equations, distribution problems, and ribbon and juice scenarios.

Explore solving angle problems in given figures by identifying angles greater than 90 degrees, recognizing perpendicular relationships, and counting angles less than 90 degrees.

Compute the total shaded area by counting 12 triangles, pairing them into 6 squares of side 4 cm (area 16 cm² each), yielding 96 cm².

Count squares to find area, one square equals four square units; transform triangles into a complete square, then compute the perimeter of a square figure with BC thrice AB.

Compute the perimeter of a not drawn to scale figure by identifying given side lengths, using rectangle properties of opposite sides, and summing to obtain 68 cm.

Compare shapes by counting unit squares and multiplying by three square units to find their areas, then identify that the q shape has the largest area at 33 square units.

Solve the rectangle perimeter problem by applying the Pythagoras theorem to find missing side lengths from right triangles, then sum the shaded figure's sides to get a 24 meter perimeter.

Subtract unshaded areas from the total rectangle to find the shaded region; compute a 4 cm square (16 cm²) and a 6×7 cm rectangle (42 cm²) to get 118 cm².

Compute the backyard's total area as 11 by 6 meters, subtract the concrete basketball court area of 7 by 5 meters, and obtain 31 square meters of grass.

Walk around a square park with side 50 m; six laps total 1200 m, confirming option d.

Partition the park into rectangles, compute each area (200, 12, 144), sum to 356, then subtract 112 to obtain 244 m² not occupied.

Explore symmetry and lines of symmetry through three questions: identifying figures lacking a line of symmetry, adding squares to make pq a symmetry axis, and letters without symmetry.

Identify lines of symmetry in geometric figures and letters, analyze shading to create symmetry, and evaluate lines such as dotted lines for symmetry on questions 4 to 7.

Explore how to transform figures to achieve symmetry by adding minimal squares, determine lines of symmetry, and solve questions 8 to 10 in the IMO class.

This lecture teaches data handling by interpreting a bar graph of favorite cricket players, identifying equal popularity; Virat Kohli and Shikhar Dhawan are each liked by 20 students.

Sum the likes for Virat Kohli and Rohit Sharma in this IMO class 5 question, with 20 and 15 likes totaling 35 and option B as correct.

Compare the like counts for Shikhar Dhawan and KL Rahul. Shows that Shikhar has 20 likes and KL Rahul has 10, so ten more favor Shikhar; option C is correct.

Read a bar graph to identify the place with 4100 residents; Hari Nagar is the correct answer for question 4, using visual cues and subdivision lines.

Compute the total residents across six places—Gurugram, Hari Nagar, Lajpat Nagar, Queenstown, Chinatown, and Noida—arriving at 27,400 residents (option D).

Analyze the line graph showing the height of five students to determine how many have height less than 150 centimeters, identifying Naksh, Kriti, and Manish as below the threshold.

Calculate the height difference between Sakshi and Manish using subtraction. Sakshi is 150 cm and Manish is 100 cm, giving a 50 cm difference.

Identify which students have the same height by comparing the prior data. Naksh and Kriti are both listed at 125 cm.

Compare the resident counts of Chinatown (6000) and Lajpat Nagar (4400) and determine that Chinatown has 600 more residents.

Examine the bar graph of five classes to determine how many students in class 4D donated, given 19 rupees per student and a total of 1995 rupees.

Map the line of boys by top and bottom, place Naman 11th from the top and Soham 5th from the bottom with five between them, yielding 21 students.

Decode the pattern by following the sequence where numbers grow by plus two, then by plus five, confirm the next terms, and conclude the answer is 18 m (option C).

Identify the correct mirror image of figure x by comparing letters and their reflections. Determine that option D matches the reflected shapes and confirms the answer.

Count the number of triangles in the given figure by enumerating them; the diagram yields twenty triangles, so the answer is option B.

Examine the bonding between figures p and q and apply the same pattern to r and s, analyzing shading changes and arrow directions to identify the correct option.

Visualize a tower of unit cubes and count the total by adding visible and hidden row counts, revealing the pattern 1, 3, 6, 10, 15 and 35 cubes.

Turn three places clockwise from the church among eight locations to determine Kavya's facing direction, which is the market (option C).

Apply a rule to all figures: multiply two opposite numbers, subtract the other two products, to obtain the middle number; deduce the missing value from 25 minus 6 equals 19.

This lesson guides fifth graders through an odd-one-out question by comparing four figures; only one differs, with E being a non-geometrical figure, so A is the correct choice.

Analyze the relationship among boys, students, and sportspersons using circles and overlaps to identify bonding portions, concluding that option A is correct.

Explore the criss cross method for multiplying two-digit numbers without carry, then master carrying in three steps: multiply ones, cross-multiply, and multiply tens to get the final product.

Master the two-step method to multiply any two-digit number by 99: subtract one from the other, then subtract that result from 99, with examples such as 28, 87, and 76.