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# Are You Smarter Than a 5 th Grader?

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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1. Are You Smarter Than a 5th Grader? By: Lynn Scales

2. 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

3. #1 Find the value of the underlined digit. 703,891 = ____________ 63,549 = ____________ 182,034 = ____________

4. Answer to #1 Find the value of the underlined digit. 703,891 = 700,000 63,549 = 3,000 182,034 = 100,000

5. #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.

6. 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.

7. #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?

8. 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”)

9. #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?

10. 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

11. #5 A dolphin’s heart beats 688 times in 6 minutes Answer: About 100 times What’s the question?

12. 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?

13. #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

14. 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

15. #7 The fraction models below are equivalent. Explain why.

16. 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.

17. #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

18. 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

19. #9 Find the product of 349 and 7. A. 49 B. 2,443 C. 2, 433 D. 2,343

20. Answer to #9 Find the product of 349 and 7. A. 49 B. 2,443 C. 2, 433 D. 2,343 B = 2,443

21. #10

22. Answer to #10 B = \$1.50

23. #11

24. Answer to #11 H = 5:24