JULY 2012 GREYSCALE Mathletics_Workbook_6-8.indd 1

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1 GITAL LOGO SHEET T S T SP ORTSNET FULL JULY 2012 COLOR 1B SP ORTS NET GREYSCALE 2013 Mathletics_Workbook_6-8.indd 1 1/10/13 2:54 PM

2 EARN 2 VOUCHERS TO A 2013 A s GAME! ELIGIBILITY Students from 1st through 8th grade are eligible to participate in the Mathletics program. INSTRUCTIONS 1. Solve all the problems in this workbook and write your answers on the answer sheet provided. 2. Mail ONLY answer sheets and voucher form with a self addressed envelope to: Oakland A s c/o Mathletics Program 7000 Coliseum Way Oakland, CA All Mathletics answer sheets must be postmarked by Friday, June 28, NO late answer sheets will be accepted after this date. Every student who turns in an answer sheet by the deadline will receive two (2) vouchers to a 2013 regular season A s home game. Some restrictions may apply. Please see the back of the voucher for more details. TEACHERS, COACHES, AND YOUTH LEADERS: Request as many free Mathletics workbooks as you need and take your entire class, team, or group to an Oakland A s game. We ask that all groups are sent back together in ONE packet and we will mail all vouchers back to ONE contact person for distribution. Please include the group form which will be provided at time of workbook delivery. This form will provide us with the number of answer sheets, names of students, and the students who are purchasing additional vouchers (as well as the number being purchased). It is also a good idea to keep a copy for your records so you know which students should receive additional vouchers. PARENTS: You may purchase additional vouchers by filling out the attached voucher form. Additional vouchers will be mailed with the complimentary vouchers. The Oakland A s are not responsible for answer forms that are lost in the mail. To request free Mathletics workbooks, please visit Mathletics is brought to you by and Adding up to make math fun Mathletics_Workbook_6-8.indd 2 1/10/13 2:54 PM

3 Predictions 1. The average length of a baseball game is about 3 hours. What is the average length of an inning in a regular 9-inning game? Using that value, what is your prediction for the length of a game that lasts 15 innings? 2. There are 162 games during the regular season. Josh Reddick hits 15 homeruns after playing the first 81 games of the season. If he keeps up this pace, how many homeruns do you predict he will hit during the entire season? 3. Coco Crisp s goal was to have a.300 batting average at the end of the season. At the All-Star Break (halfway through the season), he has 90 hits in 284 at bats. If he continues at this pace, will he reach his goal? (Hint: batting average is found by dividing hits by at bats.) 4. On average, a starting pitcher pitches once every 5 games. If the team plays 162 games and Brett Anderson wins half of his starts, how many wins will be have at the end of the season? 5. Seth Smith s goal is to have 180 hits by the end of the season. After the first quarter of the season, he has 40 hits. Is he on pace to reach his goal? If not, how many hits does he need to hit in each of the 3 remaining quarters of the season? 2013 Mathletics_Workbook_6-8.indd 3 1/10/13 2:54 PM

4 Calculating a Pitcher s ERA In baseball, a statistic called an Earned Run Average or ERA is used to track the average number of earned runs a pitcher allowed for every nine innings. The lower a pitcher s ERA, the less number of runs a pitcher has given up in the innings he has pitched. To calculate a pitcher s ERA, you multiply the total number of earned runs (ER) by 9 and divide the result by total innings pitched (IP). The equation is: (ER) x 9 IP 1. In 2012, Tommy Milone pitched 190 innings and gave up 79 earned runs. What was his ERA? = ERA 2. Which starting pitcher had the best ERA? Tommy Milone (see answer from #1) Travis Blackley: 49 earned runs in 107 innings A.J. Griffin: 28 earned runs in 82 innings 3. Bob Melvin has decided to buy dinner for the relief pitcher with the best ERA. Who will he choose? Ryan Cook: 17 earned runs in 73 innings Sean Doolittle: 16 earned runs in 47 innings Jerry Blevins: 18 earned runs in 65 innings Use greater than (>), less than (<), or equal to (=) signs. 4. Pedro Figueroa gave up 8 earned runs in 21 innings Grant Balfour gave up 21 earned runs in 74 innings 2013 Mathletics_Workbook_6-8.indd 4 1/10/13 2:54 PM

5 Calculating a Batter s OBP On-Base percentage (OBP) is a statistic that expresses how often a batter reaches base on hits, walks, or being hit by a pitch. OBP differs from batting average (AVG) because AVG only includes a batter s hits. To calculate OBP, adds hits, walks (BB), and amount of times hit by a pitch (HBP). Then, divide that value by the sum of at bats, walks, amounts of times hit by pitch, and sacrifice flies. The equation is: H + BB + HBP AB + BB + HBP + SF = OBP 1. In 2012, Coco Crisp had 118 hits, 45 walks, and 6 sacrifice flies in 455 at bats. He was hit by 0 pitches. What was his OBP? 2. In 2012, Seth Smith had 92 hits, 50 walks, and 3 sacrifice flies in 383 at bats. He was hit by 5 pitches. How many points higher was his OBP than his batting average? (Hint: batting average is found by dividing hits by at bats). 3. Derek Norris had 42 hits, 21 walks, and 1 sacrifice fly in 209 at bats. He was hit by 1 pitch. Josh Reddick had 148 hits, 55 walks, and 4 sacrifice flies in 611 at bats. He was hit by 2 pitches. Brandon Moss OBP was.358. Who had the highest OBP? 4. If Yoenis Céspedes OBP was.356 in 2012 and he had 43 walks, 3 sacrifice flies, and was hit by a pitch 7 times in 487 at bats, how many hits did he have? 2013 Mathletics_Workbook_6-8.indd 5 1/10/13 2:54 PM

6 SETH SMITH Reading a Baseball Card #15 OuTfIEldEr Below are Seth Smith s batting statistics, just like you would find on a baseball card. Can you help fill in the missing stats? SETH SMITH #15 Outfielder Born: 9/30/1982 in Jackson, MS Bats/Throws: L/L HT: 6 3 WT: 210 Debut: 9/16/2007 College: Mississippi Year Games (G) Runs (R) Hits (H) Homeruns (HR) Runs Batted In (RBI) Total What is the average number of games Smith has played in per season? 2. How many runs did Smith score in 2010? 3. How many hits did Smith earn in 2007? 4. How many homeruns did Smith hit in 2011? 5. How many RBIs did Smith have in 2009? 2013 Mathletics_Workbook_6-8.indd 6 1/10/13 2:54 PM

7 Answer Sheet Predictions Calculating OBP Calculating ERA Reading a Baseball Card Name School City Grade Level CONGRATULATIONS! Please fill out the voucher form on the last page Mathletics_Workbook_6-8.indd 7 1/10/13 2:54 PM

8 OAKLAND ATHLETICS MATHLETICS VOUCHER FORM STUDENT NAME (PLEASE PRINT): SCHOOL: GRADE: PARENT/GUARDIAN NAME: ADDRESS CITY STATE ZIP DAYTIME PHONE ( ) - OR CREDIT CARDS (PLEASE CIRCLE ONE): VISA MC AMEX DISCOVER CID# CREDIT CARD # EXP. DATE NAME ON CREDIT CARD # OF TICKETS PRICE PER TICKET 2 $0 COMP PLAZA OUTFIELD FREE * = * To a 2013 regular season home game. Game restrictions may apply. PLAZA OUTFIELD $14.00 EACH = ONE TIME HANDLING $4 (only if purchasing extra vouchers) TOTAL Enclosed is my check or money order made payable to the Oakland A s for $ ORDER MUST BE REDEEMED BY MAIL Mail to: Oakland A s Mathletics, 7000 Coliseum Way, Oakland, CA Forms must be postmarked by Friday, June 28, No late answer sheets will be accepted after this date. Vouchers will be mailed to the address provided on form. Vouchers subject to availability. Please see back of the vouchers for more details. All Mathletics participants are encouraged to attend MATHLETICS DAY! Sunday, May 19, 2013 A s vs. Royals 1:05pm Kids Beanie presented by Ross Dress For Less (5,000 kids) community@oaklandathletics.com 2013 Mathletics_Workbook_6-8.indd 8 1/10/13 2:54 PM