Math Olympiad 79.

Slides:

Advertisements

Similar presentations

What Are My Coin Riddles. I am 1 coin and I equal 1 cent. What am I? Think about it and click to see the answer.

Advertisements

Geometry Mini-Lesson (1, −1) (−1, 1) (6, 3) (−6, −3)

EXAMPLE 1 Use properties of proportions SOLUTION NP ST MN RS = Because 4 x = 8 10, then In the diagram, NP ST MN RS = Write four true proportions. By the.

Adding and Subtracting Fractions with Like Denominators.

Ratios & Rates. What is a ratio? A ratio is the comparison between two quantities Have we studied anything that would be considered a ratio? Fractions.

Bell Work: Simplify: (1) (10) -2. Answer: 100 LESSON 64: USING A UNIT MULTIPLIER TO CONVERT A RATE.

5th Grade Common Core Math

Introduction to Algebra

Formula Practice Find the area for the figure below. 12 m 6 m Answer: #1.

% Percentages % What does percent mean? ‘per cent’ means per hundred % means /100 So 50% means 50 out of 100.

People Fractions. Problem 1 of 20 Answer 1 = 10 Problem 2 of 20 Answer 2 = 5.

BASKETBALL Questions….

MATH 8 MIDPOINT. What’s a midpoint? A MIDPOINT is a point that divides a line segment into two equal length parts. MIDPOINT.

1.3 – Segment addition, midpoint, and bisect

FCAT MATH Jeopardy! Chapters Add and Subtract Mixed Fractions Chapter

Organized method of problem-solving Used in chemistry, physics, engineering, and medicine Communicates the path to scientists that follow your work Records.

Unit Conversion: The Factor Label Method. You can convert from one unit to another using a conversion factor A conversion factor is an expression for.

28 JAN 15 Motion & Speed Notes

EXAMPLE 1 Use properties of proportions SOLUTION NP ST MN RS = Because 4 x = 8 10, then In the diagram, NP ST MN RS = Write four true proportions. By the.

©thevisualclassroom.com 2.11 Verifying Geometric Properties When proving sides of a quadrilateral are parallel use slope When proving sides are perpendicular,

A right triangle is shown below. The triangle is dilated by a scale factor of 3.5 to create a new triangle. What is the area of the new triangle? A. 24.

EXAMPLE 1 Use a formula High-speed Train The Acela train travels between Boston and Washington, a distance of 457 miles. The trip takes 6.5 hours. What.

Algebra 1GeometryAlgebra 2 Related Technical Jeopardy Round 2.

Training begins in… 15:00 minutes Training begins in… 14:00 minutes.

Right-Angled Trigonometry Involving 3D Example The cuboid below has length AB = 4cm, DE = 6cm and AF = 12cm. Work out the lengths of the diagonals (i)

GET READY Questions will run automatically. Set 9 Question 1 Write the number “four hundred and nine thousand three hundred and sixty one” in figures.

BY GROUP THREE. Rhombus MEANING In Indonesian, rhombuses called belah ketupat. Exactly, rhombuses like kites. But rhombuses has same side. Like this Rhombus.

EOC Practice Test Reporting Category 4. Geometry and Measurement Reporting Category 4.

Lesson 8: The Key to Rounding Money

X = 3y = 4z = 8 2x Step 1X = 3 Step 22(3) 2 – 6 2 Step 4 2(9) – 6 2Step 3 18 – 12 =6.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to answer.

2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt IdentifySimplify Mixed Numbers.

Money Quiz!!!!. Write the question number and the answer in your maths book. How much money is shown? 1.

Money Quiz!!!!. Write the question number and the answer in your maths book. How much money is shown? 1.

1.3 Write Expressions Objective: To be able to translate verbal phrases into expressions Warm-up: Evaluate: when x = 3 Eight students each order.

Similar Polygons. A B C D E G H F Example 2-4a Rectangle WXYZ is similar to rectangle PQRS with a scale factor of 1.5. If the length and width of rectangle.

MATHCOUNTS 2015 School Competition Countdown Round.

Unit 4: CIRCLES Topic 11: C IRCLE M EASUREMENTS Topic 12: T HEOREMS A BOUT C IRCLE.

Lower bound algorithm. 1 Start from A. Delete vertex A and all edges meeting at A. A B C D 4 5 E Find the length of the minimum spanning.

Lesson 66: Signs of Fractions, Degree Triangles

CALCULATOR NOT ALLOWED SECTION

A. x = 2, AB = 8 B. x = 1, AB = 5 C. D. x = –2, AB = –4

1. If you travel at 10mph for 1 hour, how far do you travel?

Mental Math Activity.

Review Practice problems

Midsegment Theorem, Patterns, & The EOI

7 Math – Ratios and Rates.

Addition, Subtraction, and Complex Fractions

Apply Properties of Similar Polygons

3 Solving Application Problems.

A B A B C D C D A B A B C D C D A B A B C D C D A B A B C D C D

1-6 Midpoint Find the midpoint of: DE: DC: AB: AE: (2+5) / 2 = 3.5

Square Roots of Perfect Squares

Comparing Fractions Name: _____________________________________

Comparing Fractions Name: ______________________________

Geometry Mini-Lesson The perimeter of square ABCD is 40 cm. What is the length of apothem EF? 2.5 cm 5 cm 10 cm 20 cm MA.912.G.2.5: Explain the derivation.

Money Quiz!!!!.

Fractions VI Adding Like Denominators

Adding Mixed Numbers TeacherTwins©2015.

Area of Quadrilateral.

Fractions VII Adding Like Denominators

Convert the measurements.

1.1 Variables Objective: Students will be able to substitute numbers in for variables and evaluate problems. Students must demonstrate they know how to.

3.NF.3a-d Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

SPECIAL SEGMENTS.

Welcome! The Topic For Today Is…

Presentation transcript:

Math Olympiad 79

Question 1 4 minutes A freight train travels 1 mile in 1 minute 30 seconds. At this rate, how many miles will the train travel in 1 hour? Answer:40 miles

Question 2 5 minutes A person has four special coins whose values in cents are shown below. How many different amounts can the person make using one or more of the coins? 3 1 5 10 Answer:15

Question 3 5 minutes If I add 5 to 1/3 of a number, the result is ½ of the number. What is the number? Answer: 30

Question 4 6 minutes The length of AE is 20 cm. B is the midpoint of AC, C is the midpoint of BD, and D is the midpoint of BE. What is the length of DE in cm? A B C D E 20 Answer: 8 cm

What simple fraction is equal to the complex fraction shown below? Question 5 6 minutes What simple fraction is equal to the complex fraction shown below? Answer: