McGraw Hill Math Grade 5 Chapter 3 Lesson 12 Answer Key Problem Solving

All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Chapter 3 Lesson 12 Problem Solving are as per the latest syllabus guidelines.

McGraw-Hill Math Grade 5 Answer Key Chapter 3 Lesson 12 Problem Solving

Solve.

Question 1.
Paula collects postage stamps of animals. She has 4 times as many stamps that show tigers as stamps that show leopards. The number of stamps with elephant pictures is divisible by 7. Paula has 48 stamps in all. How many elephant stamps does she have? Create a chart to help find the answer.
Answer:
Paula has 6 elephant stamps.

Explanation:
Given that Paula has 4 times as many stamps that show tigers as stamps that show leopards and the number of stamps with elephant pictures is divisible by 7 and Paula has 48 stamps in all. So the number of elephant stamps does she have is,
X+4+ X/7 = 48,
(7X+28+X)/7 = 48,
(8X+28)/7 = 48,
8X+28 = 48×7,
8X+28 = 336,
8X = 308,
X = 38.
Paula has 6 elephant stamps.

Question 2.
Scotty saw a pattern when he divided by 5: Any dividend with a 0 or 5 in the ones place can be divided by 5 with no remainder. What can you say about the quotient if the divisor in a problem is 5 and the dividend has a 1 or a 6 in the ones place?
Answer:
If the dividend has a 1 or a 6 in the ones place and the divisor 5 then the remainder will not be 0. As the multiples of 5 have 0 and 5 in ones place.

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