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Are You Smarter Than a 5 th Grader?. By: Lynn Scales. Math Standard: MCC4.OA.2

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## Are You Smarter Than a 5 th Grader?

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**Are You Smarter Than a 5th Grader?**By: Lynn Scales**Math**Standard: MCC4.OA.2 Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison**#1**Find the value of the underlined digit. 703,891 = ____________ 63,549 = ____________ 182,034 = ____________**Answer to #1**Find the value of the underlined digit. 703,891 = 700,000 63,549 = 3,000 182,034 = 100,000**#2**Sophia said that the expanded form for 605,970 is 600,000 + 50,000 + 900 + 70. Explain Sophia’s error and give the correct answer.**Answer to #2**Sophia should have put 0 for the ten thousands instead of 50,000. So the correct answer should be: 600,000 + 00,000 + 5,000 + 900 + 70 + 0 = 605,970.**#3**The Smith family opens the door of their refrigerator 32 times in one day. There are 31 days in May. About how many times is it opened in May?**Answer to #3**The Smith family opens the door of their refrigerator 32 times in one day. There are 31 days in May. About how many times is it opened in May? Answer = 900 times (remember to estimate when it says “about”)**#4**The bakery made 110 pumpkin muffins. They will be packed in boxes with 8 muffins in each box. About how many boxes will there be?**Answer to #4**The bakery made 110 pumpkin muffins. They will be packed in boxes with 8 muffins in each box. About how many boxes will there be? Answer: 14 boxes**#5**A dolphin’s heart beats 688 times in 6 minutes Answer: About 100 times What’s the question?**Answer to #5**A dolphin’s heart beats 688 times in 6 minutes Answer: About 100 times What’s the question? Answer: About how many times does a dolphin’s heart beat in one minute?**#6**About 300,000 people attend a festival. Which number could be the exact number of people that attended the festival? a. 389,001 b. 351,213 c. 282,348 d. 249,849**Answer to #6**About 300,000 people attend a festival. Which number could be the exact number of people that attended the festival? a. 389,001 b. 351,213 c. 282,348 d. 249,849 C = 282,348**#7**The fraction models below are equivalent. Explain why.**Answer to #7**The fraction models below are equivalent. Explain why. 3/6 = 1/2 2/4 = 1/2 4/8 = 1/2 Answer = All the fractions are equivalent because they all cover half of the entire shape.**#8**Find the quotient of 1,280 and 7. A. 182 R 5 B. 181 R 13 C. 182 R 6 D. 182 R 7**Answer to #8**Find the quotient of 1,280 and 7. A. 182 R 5 B. 181 R 13 C. 182 R 6 D. 182 R 7 C = 182 R 6**#9**Find the product of 349 and 7. A. 49 B. 2,443 C. 2, 433 D. 2,343**Answer to #9**Find the product of 349 and 7. A. 49 B. 2,443 C. 2, 433 D. 2,343 B = 2,443**Answer to #10**B = $1.50**Answer to #11**H = 5:24

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