All the solutions provided in McGraw Hill My Math Grade 2 Answer Key PDF Chapter 8 Lesson 1 Pennies, Nickels, and Dimes will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Answer Key Chapter 8 Lesson 1 Pennies, Nickels, and Dimes
Explore and Explain
Teacher Directions: Use pennies, nickels, and dimes. Sort the coins. Find the value of each group of coins. Write the value on each bouncy ball machine.
Answer:
1 penny = 50 coins
1 nickel = 40 coins
1 dime = 50 coins
Total = 50 + 40 + 50 = 140 coins.
Explanation:
See and Show
Helpful Hint
¢ stands for cents
To find the value of coins, start counting with the coin that has the greatest value.
Count to find the value of the coins.
Question 1.
____________ ¢
Answer:
16 ¢.
Explanation:
10 ¢, 15 ¢, 16 ¢.
Question 2.
= _____________ ¢
Answer:
41 ¢.
Explanation:
10 ¢, 20 ¢, 30 ¢, 35 ¢, 40 ¢, 41 ¢.
Talk Math How many dimes are equal to 70 cents?
Answer:
There are 7 dimes that are equal to 70 cents.
Explanation:
1 dime = 10 cents
How many dimes are equal to 70 cents.
70 ÷ 10 = 7 dimes
On Your Own
Count to find the value of the coins.
Question 3.
= _____________ ¢
Answer:
31 ¢.
Explanation:
Dime + Dime + Nickel + nickel + penny
10 + 10 + 5 + 5 + 1 = 31 ¢.
Question 4.
= _____________ ¢
Answer:
46 ¢
Explanation:
Dime + dime + dime + nickel + nickel + nickel + penny
10 + 10 + 10 + 5 + 5 + 5 +1 = 46 ¢.
Question 5.
= _____________ ¢
Answer:
24 ¢.
Explanation:
Dime + nickel + nickel + penny + penny +penny + penny +penny
10 + 5 + 5 + 1 + 1 + 1 + 1 = 24 ¢.
Question 6.
= _____________ ¢
Answer:
28 ¢
Explanation:
Dime + Nickel + nickel + nickel + penny + penny + penny
10 + 5 + 5 + 5 + 1 + 1 + 1 = 28 ¢
Problem Solving
Question 7.
Jen had 6 dimes and 4 nickels. She lost 2 of each of them. How much does she still have?
_____________ ¢
Answer:
60 cents.
Explanation:
Given,
Jen had 6 dimes and 4 nickels.
1 dime = 10 cents.
6 dimes = 6 × 10 = 60 cents
she lost one of them = 60 – 10 = 50 cents
4 nickels
1 nickel = 5 cents.
She lost one of them
4 nickel = 5 × 4 = 20 – 10 = 10 cents.
Therefore she still left with 50 + 10 = 60 cents.
Question 8.
Marcy wants to buy beads that cost 800 to make a friendship bracelet. If she has 2 nickels, how many dimes does she need to buy the beads?
____________ dimes
Answer:
She needs 1 dime to buy the beads.
Explanation:
Given,
Cost of beads = 800
She has 2 nickels
To find: how many dimes does she need to buy the beads?
1 Nickle = 5 cents
2 nickels = 10 cents
1 dime = 10 cents
Question 9.
Derek has some dimes. He gives Luis * 4 dimes. He gives Mia 3 dimes. How much money did Derek give away?
_____________ ¢
Answer:
70 cents.
Explanation:
Luis has 4 dimes.
Mia gives 3 dies
1 dime = 10 cents
4 dime = 4 × 10 = 40 cents for Luis
3 dimes = 3 × 10 = 30 cents for luis
Total = 40 + 30 = 70 cents
Therefore Derek has 70 cents in total.
HOT Problem Paul finds 5 dimes and 2 nickels. He counts them and says he has 500. Tell why Paul is wrong. Make it right.
Answer:
Paul says he has 500. But he is wrong as Paul has 60 cents.
Explanation:
Given,
5 dimes and 2 nickels
1 dime = 10 cents
5 dimes = 10 × 5 = 50 cents
1 nickel = 5 cents
2 nickels = 5 × 2 = 10 cents
50 + 10 = 60 cents.
Therefore Paul has 60 cents, not 500.
McGraw Hill My Math Grade 2 Chapter 8 Lesson 1 My Homework Answer Key
Practice
Count to find the value of the coins.
Question 1.
= _____________ ¢
Answer:
36 ¢.
Explanation:
Dime + dime + dime + nickel + penny
10 + 10 + 10 + 5 + 1 = 36 ¢.
Question 2.
= _____________ ¢
Answer:
27 ¢.
Explanation:
Dime + nickel + nickel + nickel + penny + penny
10 + 5 + 5 + 5 + 1 + 1 = 27 ¢.
Question 3.
= _____________ ¢
Answer:
37 ¢.
Explanation:
Dime + dime + dime + nickel + penny + penny
10 + 10 + 10 + 5 + 1 + 1 = 37 ¢
Question 4.
= _____________ ¢
Answer:
31 ¢.
Explanation:
Dime + nickel + nickel + nickel + nickel + penny
10 + 5 + 5 + 5 + 5 + 1 = 31 ¢.
Dime + nickel + nickel + nickel + nickel + penny
10 + 5 + 5 + 5 + 1 = 31 ¢.
Question 5.
Ken has 800. His friend has 4 dimes. How many nickels does his friend need to have the same amount of money as Ken?
____________ nickels
Answer:
8 nickels
Explanation:
Given,
1 dime = 10 cents
4 dimes = 4 × 10 = 40 cents.
1 nickel = 5 cents
How many nickels does his friend need
x = 40
40 ÷ 5 = 8 nickels.
So his friend needs 8 nickels to have the same amount of money as Ken.
Vocabulary Check
Circle the correct answer.
Question 6.
dime
Answer:
The second coin is the dime.
Explanation:
The correct answer is the second coin.
Math at Home Have your child count coins to total 90¢.
Answer:
Quarter + Quarter + Dime + Dime + Nickel + Nickel + Nickel + Dime + Dime + Dime + Dime + Dime
25 + 25 + 10 + 10 + 5 + 5 + 1 + 1 + 1 + 1 + 1 = 90 cents.
Explanation:
1 quarter = 25 cents
1 dime = 10 cents
1 nickel = 5
25 + 25 + 10 + 10 + 5 + 5 + 5 + 1 + 1 + 1 + 1 + 1