Math Contests, Grades 7 & 8, Vol. 1- School Years: 1977-78 Through 1981-82 Read Free Books and Download eBooks
Detailed solutions included
Paperback: 94 pages
Publisher: Math League Press; Second Printing, 1997 edition (October 1992)
Language: English
ISBN-10: 0940805073
ISBN-13: 978-0940805071
Product Dimensions: 0.5 x 6.2 x 9 inches
Shipping Weight: 5.6 ounces (View shipping rates and policies)
Average Customer Review: 5.0 out of 5 stars See all reviews (1 customer review)
Best Sellers Rank: #680,017 in Books (See Top 100 in Books) #5 in Books > Teens > Hobbies & Games > Games & Activities > Questions & Answers #147 in Books > Children's Books > Activities, Crafts & Games > Games > Questions & Answers #657 in Books > Teens > Education & Reference > Mathematics
Age Range: 12 and up
Grade Level: 7 and up
I worked through each problem in Math Contests, Grades 7 & 8, Vol. 1, and they have been very good. However, the worked-out solutions in the back of the book can be more simple and intuitive. Most of the problems are pretty straightforward; there are few difficult ones, so it's beneficial to have a guide at hand. I've spotted a couple of errors in the answers:#14 on 1981-1982 7th Grade Contest: It can't be C. 2 + 2 x 2 - 2 = 2 + 4 - 2 = 6 - 2 = 4. Therefore, it is A.#33 on 1981-1982 8th Grade Contest: It can't be D. 6x^2 for the original cubical block. Then, twice as long makes it 6 * (2x)^2 = 6 * (4x^2) = 4 * (6x^2). Hence, it is 4 times as much paint as it takes to do the original cubical block. Therefore, it is B.Check out my YouTube videos of similar problems to the book by googling "Mr. Math Expert Math Olympiad Contest Problems for Elementary and Middle Schools" and "Mr. Math Expert Math League" for more practice.
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