Teaching the Common Core Math Standards With Hands-On Activities, Grades 3-5 (24 page)

r1; 3 DVD cases are needed
(6)
(7)
(8)
miles

Problems and Reasonable Answers

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1. Arielle's math test score was 10 points higher than Scot's score. Scot's score was 85. Nadine's score was halfway between their scores. What was Nadine's score?

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2. Riley has saved a $5 bill and some $10 bills. His total amount of money is $85. How many $10 bills does he have?

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3. Marcus is planning a party for his little sister. He can get tables that each seat 8 people. His sister has 28 friends coming to the party. How many tables must Marcus have for his sister and her friends?

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4. Andrew parked his car in a parking garage. It cost $4 for the first hour and $2 for each additional hour. Andrew paid $20 for parking. How many hours was his car parked?

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5. Audrey wants to store her DVDs in cases. She has 20 DVDs and plans to buy 5 more. Each case holds 12 DVDs. How many cases will she need?

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6. Ethan adopted a dog. He spent $15 on dog food and $12 for toys. He also bought dog bowls for food and water. In all, he spent $33. How much did the dog bowls cost?

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7. Mason spent $28 for two adult tickets and one student ticket for the school play. The adult tickets cost $10 each. How much did Mason's ticket cost?

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8. Daniela is starting a walking program. She walked a mile the first day. She walked twice as far the second day. What is the total distance she walked?

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Operations and Algebraic Thinking: 4.OA.4

“Gain familiarity with factors and multiples.”

4. “Find all factor pairs for a whole number in the range 1–100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1–100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1–100 is prime or composite.”

Background

Every number except 1 has two or more factors. A number that has only two factors, 1 and the number, is a prime number. A number that has more than two factors is a composite number.

Composite numbers can be expressed as the product of two or more pairs of factors. For example, 30 is a composite number. Its pairs of factors are
,
,
, and
. These pairs of factors can be rewritten as
,
,
, and
. The pairs are the same; only the order of the numbers is reversed.