All the solutions provided in McGraw Hill Math Grade 2 Answer Key PDF Chapter 2 Lesson 2 Skip Count by 2s, 5s, and 10s will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Answer Key Chapter 2 Lesson 2 Skip Count by 2s, 5s, and 10s
Explore and Explain
Teacher Directions: Draw a picture and write a number sentence to solve. Sue and Pat are zookeepers. Sue fed 5 monkeys and 3 elephants. How many animals did she feed? Pat fed 3 tigers and 5 giraffes. How many animals did he feed?
Explanation:
5 + 3 = 8
3 + 5 = 8
If the addend are same then the sum will be same.
if the pattern is deferent also.
See and Show
Equal groups have the same number of objects. Put two counters in each group. How many equal groups are there?
4 equal groups
Helpful Hint
When there are equal groups, you can skip count to find total.
Skip count to find the total.
2, 4, 6, 8 counters in all
Use to model equal groups. Skip count to find the total.
Question 1.
3 groups of 2 ____ in all
Answer:
Explanation:
2 x 3 = 6
2 + 2 + 2 = 6
3 groups of 2 = 6 in all
Question 2.
4 groups of 5 _____ in all
Answer:
Explanation:
4 x 5 = 20
45 + 5 + 5 + 5 = 20
4 groups of 5 = 20 in all
Describe the groups. Skip count to find the total.
Question 3.
Answer:
Explanation:
Sum = number of rows into columns
4 x 10 = 40
10 + 10 + 10 + 10 = 40
Talk Math Create a skip-counting story for Exercise 3
On My Own
Use to model equal groups. Skip count to find the total.
Question 4.
2 groups of 10 ___ in all
Answer:
Explanation:
Sum = number of rows into columns
10 x 2 = 20
2 groups of 10 = 20 in all
10 + 10 = 20
Question 5.
6 groups of 2 ___ in all
Answer:
Explanation:
Sum = number of rows into columns
6 groups of 2 = 12 in all
2 + 2 + 2 + 2 + 2 + 2 = 12
2 x 6 = 12
Describe the groups. Skip count to find the total.
Question 6.
Answer:
Explanation:
There are 3 groups of 5 erasers
In each group there are 5 erasers
5 + 5 + 5 = 15
3 x 5 = 15
Question 7.
Answer:
Explanation:
There are 3 groups of pencils
In each group there are 10 pencils
10 + 10 + 10 = 30
3 x 10 = 30
Question 8.
Answer:
Explanation:
There are 5 groups of buttons
in each group there are 5 buttons each
5 + 5 + 5 + 5 + 5 = 25
5 x 5 = 25
Problem Solving
Solve. Draw a picture to help, if needed.
Question 9.
Lori has 6 bunches of grapes. Each bunch has 10 gropes. How many grapes does Lori have in all?
_____ grapes
Answer:
60 grapes
Explanation:
Lori has 6 bunches of grapes.
Each bunch has 10 gropes.
6 x 10 = 60
10 + 10 + 10 + 10 + 10 + 10 = 60
60 grapes that Lori have in all.
Question 10.
Paul organized his shells in groups of 5. He has 3 groups of 5 shells. How many shells does he have in all?
________ shells
Answer:
15 shells.
Explanation:
3 x 5 = 15
5 , 10 , 15
The pattern is skip by 5
Question 11.
Myla put 10 cookies each in 4 bags for a bake sale. Kate put 10 cookies in each of 3 bags. How many cookies do they have in all?
_____ cookies
Answer:
70 cookies
Explanation:
Myla put 10 cookies each in 4 bags for a bake sale
10 x 4 = 40
. Kate put 10 cookies in each of 3 bags.
10 x 3 = 30
40 + 30 = 70
70 cookies that they have in all.
Write Mäth
How can you find the total number of tennis balls in 4 groups of 10 tennis balls? Use your vocabulary word.
Explanation:
4 groups of 10 tennis balls
4 x 10 = 40
so, 40 tennis balls
McGraw Hill My Math Grade 2 Chapter 2 Lesson 2 My Homework Answer Key
Practice
Skip count to find the total.
Question 1.
Answer:
Explanation:
Sum = number of rows into columns
2 x 10 = 20
10 + 10 = 20
There are 2 groups in each group there are 10 spiders each
total 20 spiders.
Question 2.
Answer:
Explanation:
Sum = number of rows into columns
5, 10, 15
The pattern of counting is skip by 5
3 rows of turtles
In each row there are 5 turtles
Solve. Draw a picture to help, if needed.
Question 3.
Evan has 6 groups of 5 toy cars. How many toy cars does he have in all?
______ toy cars
Answer:
30 toy cars
Explanation:
Evan has 6 groups of 5 toy cars.
6 x 5 = 30
30 toy cars that he have in all
Question 4.
Mrs. Hanes is planning a field trip. There are 6 groups of 10 students going. How many students are going on the field trip?
____ students
Answer:
60 students
Explanation:
There are 6 groups of 10 students going.
6 x 10 = 60
60 students are going on the field trip.
Question 5.
Austen has 6 sets of 10 baseball cards. Tim has 3 sets of 10 baseball cards. How many baseball cards do they have in all?
_______ baseball cards
Answer:
30 baseball cards
Explanation:
Austen has 6 sets of 10 baseball cards.
6 x 10 = 60
Tim has 3 sets of 10 baseball cards.
3 x 10 = 30
30 baseball cards that they have in all.
Vocabulary Check
Question 6.
Circle ‘equal groups of five buttons.
Answer:
Explanation:
5 x 3 = 15
There are 3 groups of buttons
In each group there are 5 buttons.
Math at Home Use buttons, macaroni, or pennies. Hove your child make equal groups of 2s, 5s, and 10s. Have him or her skip Count to find the totals.