All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 5 Lesson 2 Tens will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 5 Lesson 2 Tens
Explore and Explain
Teacher Directions: Place one 
in each window or the train car. Join the cubes together to make a train. Move this train off the track. Repeat this two more times. Count by tens. Write the number.
Answer:
Explanation:
3 tens is 30
So, The number is 30.
See and Show
You can group 10 ones to make a ten.
Use 
. Make groups of ten. Count by tens. Write the numbers.
Question 1.
___________ tens = 
Answer:
Explanation:
I counted by 10’s
4 tens = 40.
Question 2.
___________ tens = 
Answer:
Explanation:
I counted by 10’s
7 tens = 70.
Talk Math How would you use cubes to model the number 100?
Answer:
Explanation:
I drew to show hoe we can model the number 100 using cubes.
On My Own
Use . Make groups of ten. Count by tens. Write the numbers.
Question 3.
Answer:
Explanation:
I counted by 10’s
2 tens = 20.
Question 4.
Answer:
Explanation:
I counted by 10’s
8 tens = 80.
Question 5.
Answer:
Explanation:
I counted by 10’s
5 tens = 50.
Question 6.
Answer:
Explanation:
I counted by 10’s
9 tens = 90.
Question 7.
Answer:
Explanation:
I counted by 10’s
6 tens = 60.
Question 8.
Answer:
Explanation:
I counted by 10’s
3 tens = 30.
Problem Solving
Question 9.
Kelvin has 7 groups of cars. There are 10 cars in each group. How many cars does he have in all?
_______________ cars
Answer:
Explanation:
Kelvin has 7 groups of cars
There are 10 cars in each group
I drew 7 tens rods
I counted by 10’s
7 tens = 70
So, Kelvin has 70 cars in all.
Question 10.
Mrs. Brown is making cookies for the soccer players. There are 4 teams of 10. How many cookies does she need?
_______________ cookies
Answer:
Explanation:
Mrs. Brown is making cookies for the soccer players
There are 4 teams of 10
I drew 4 tens rods
I counted by 10’s
4 tens = 40
So, Mrs. Brown need 40 cookies.
HOT Problem Jaden says the pennies show 2 tens. Tell why Jaden is wrong. Make it right.
Answer:
Explanation:
Jaden is wrong 1 of the two groups of pennies do not have 10 pennies
I drew to show the correct one
2 tens = 20.
McGraw Hill My Math Grade 1 Chapter 5 Lesson 2 My Homework Answer Key
Practice
Count groups of ten. Write the numbers
Question 1.
Answer:
Explanation:
I counted by 10’s
2 tens = 20.
Question 2.
Answer:
Explanation:
I counted by 10’s
8 tens = 80.
Question 3.
Answer:
Explanation:
I counted by 10’s
7 tens = 70.
Question 4.
Answer:
Explanation:
I counted by 10’s
5 tens = 50.
Question 5.
There are 4 boxes. Each box has lo buttons in it. How many buttons are there in all?
____________ buttons
Answer:
Explanation:
There are 4 boxes
Each box has lo buttons in it
I counted by 10’s
4 tens = 40
So, there are 40 buttons in all.
Question 6.
There are 3 vases. Each vase has 10 flowers in it. How many flowers are there in all?
___________ flowers
Answer:
Explanation:
There are 3 vases
Each vase has 10 flowers in it
I counted by 10’s
3 tens = 30
So, there are 30 flowers in all.
Vocabulary Check
Circle the correct answer.
Question 7.
Which group shows counting by tens?
5, 10, 15, 20, 25
10, 20, 30, 40, 50
Answer:
Explanation:
The second group shows the counts by 10
So, i drew a circle around the second group.
Math at Home Give your child several small items such as buttons or pennies to count. Help your child make groups of ten and then Count the items by tens.