McGraw Hill Math Grade 5 Chapter 1 Lesson 3 Answer Key Using Exponents

All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Chapter 1 Lesson 3 Using Exponents are as per the latest syllabus guidelines.

McGraw-Hill Math Grade 5 Answer Key Chapter 1 Lesson 3 Using Exponents

Convert

Find each product or quotient. Show your work.

Question 1.
75,600 × 10²
Answer: 75,600 × (10 × 10) = 75,600 × 100 = 7,560,000

Question 2.
75,600 ÷ 10² _____________
Answer:
75,600 ÷ 10²
10² = 10 × 10 = 100
75,600 ÷ 100 = 756
So, when we divide 75600 by 100 we get the quotient as 756.

Question 3.
4 × 10⁴ _______________
Answer:
4 × 10⁴ = 4 × 10 × 10 × 10 × 10 = 40000
Thus the product of 4 and 10 power 4 is 40,000.

Question 4.
4 ÷ 10⁴ __________
Answer:
4 ÷ 10⁴ = 4 ÷ 10000 = 0.0004
When we divide the number 4 by 10,000 we get the quotient in the decimal form as 0.0004.

Question 5.
23 ÷ 10³ __________
Answer:
23 ÷ 10³ = 23 ÷ 1000 = 0.023
When we divide the number 23 by 1,000 we get the quotient in the decimal form as 0.023.

Question 6.
955 × 10² __________
Answer:
955 × 10² = 955 × 10 × 10 = 95,500

Question 7.
53 × 10³ __________
Answer:
53 × 10³ = 53 × 10 × 10 × 10 = 53,000

Question 8.
What happens to the decimal point if you multiply a number by a power of 10?
__________________________________
Answer:
To multiply by a power of 10, simply move the decimal to the right in the same number of places as the exponent or as the number of zeros.