We included HMH Into Math Grade 1 Answer Key PDF Module 3 Lesson 5 Add 3 Numbers to Solve Problems to make students experts in learning maths.
HMH Into Math Grade 1 Module 3 Lesson 5 Answer Key Add 3 Numbers to Solve Problems
I Can find the sum of three numbers to solve word problems.
Step It Out
1. A plant has 5 leaves at the top, 2 leaves in the middle, and I leaf at the bottom. How many leaves does the plant have?
A. Use objects to show the problem.
THINK: I can connect cubes to show each addend.
B. Group the two addends you will add first. Draw to show what you did.
Answer:
C. Write to solve the problem.
__ + ___ +__________=
The plant has ___ leaves.
Explanation:
A plant has 5 leaves at the top, 2 leaves in the middle, and I leaf at the bottom
5 + 2 + 1 =
First add 5 and 2
5 + 2 = 7
Then add 7 and 1
7 + 1 = 8
So, 5 + 2 + 1 = 8
Therefore, the plants have 8 leaves.
Step It Out
2. Joe has 2 cats. Dawn has 2 cats. Sandy has 6 cats. How many cats do they have altogether?
Decide which addends you will add together first.
A. Here is one way. THINK: Add doubles.
Explanation:
Joe has 2 cats. Dawn has 2 cats. Sandy has 6 cats
Add first 2 addends first and then add their sum and the third number
2 + 2 = 4
4 + 6 = 10
So, 2 + 2 + 6 = 10
B. Here is another way. ThINK: Count on 2.
Explanation:
Joe has 2 cats. Dawn has 2 cats. Sandy has 6 cats
Add 2 + 6 = 8
Then add 2 and 8
2 + 8 = 10
So, 2 + 2 + 6 = 10
C. Joe, Dawn and Sandy have ___ cats.
Explanation:
2 + 2+ 6 = 10
Therefore, Joe, Dawn and Sandy have 10 cats.
Check Understanding Math Board
Solve. Draw to show your work.
Question 1.
There is 1 deer, 3 rabbits, and 7 birds at the pond. How many animals are at the pond?
____ animals
Answer:
Explanation:
There is 1 deer, 3 rabbits, and 7 birds at the pond
1 + 3 + 7 =
Add 1 and 3
1 + 3 + 7 =
4 + 7 = 11
1 + 3 + 7 = 11
So, there are 11 animals at the pond.
On Your Own
Solve. Draw or write to show your thinking.
Question 2.
Reason Bashir sees 2 striped kites, I red kite, and 3 blue kites in the sky. How many kites does he see?
____ kites
Answer:
Explanation:
Bashir sees 2 striped kites, I red kite, and 3 blue kites in the sky
2 + 1 + 3 =
Add 2 and 1
2 + 1 + 3 =
3 + 3 = 6
2 + 1 + 3 = 6
So, Bashir has 6 kites.
Question 3.
Reason Cole has 5 green marbles, 4 red marbles, and 5 purple marbles. How many marbles does he have?
____ marbles
Answer:
Explanation:
Cole has 5 green marbles, 4 red marbles, and 5 purple marbles
5 + 4 + 5 =
Add 5 and 4
5 + 4 + 5 =
9 + 5 = 14
5 + 4 + 5 = 14
So, Cole have 14 marbles.
Question 4.
Model with Mathematics Paul, Vicki, and Beth each scored 3 goals at soccer practice. How many goals did they score? Complete the equations to solve.
____ goals
Answer:
Explanation:
Paul, Vicki, and Beth each scored 3 goals at soccer practice
I wrote the way i add the first two addends and then add their sum with the third addend
3 + 3 + 3 =
6 + 3 = 9
So, 3 + 3 + 3= 9
Therefore, They made 9 goals.
On Your Own
Solve.
Question 5.
Sam stacks 8 large boxes, 2 medium boxes, and 1 small box. How many boxes does she stack?
___ boxes
Answer:
Explanation:
Sam stacks 8 large boxes, 2 medium boxes, and 1 small box
I wrote the way i add the first two addends and then add their sum with the third addend
8 + 2 + 1 =
10 + 1 = 11
So, 8 + 2 + 1 = 11
Therefore, Sam have 11 boxes.
Question 6.
Tonya has 4 stamps from countries in Asia, 5 stomps from countries in Africa, and 1 stamp from a country in Europe. How many stamps does she have?
_____ stamps
Answer:
Explanation:
Tonya has 4 stamps from countries in Asia, 5 stomps from countries in Africa, and 1 stamp from a country in Europe
I wrote the way i add the first two addends and then add their sum with the third addend
4 + 5 + 1 =
9 + 1 = 10
So, 4 + 5 + 1 = 10
Therefore, Tonya have 10 stamps.
Question 7.
Reason Find the unknown addend. Complete the equation.
1 + 3 + 
= 5
1 + 3 + ___ = 5
Answer:
1 + 3 +
= 5
Explanation:
As we know 1 + 3 = 4
4 + = 5
Subtract 4 from 5
5 – 4 = 1
So, 4 + 1 = 5
Therefore, the unknown number is 1.
Question 8.
Open Ended Write and solve a word problem that adds 3 numbers.
______________________
______________________
___ = ___ + ___ + ___
Answer:
Joy, Vicki and Paul scored 2 , 3 and 4 runs in a game. How many did they score all together?
Solve.
Explanation:
Joy, Vicki and Paul scored 2 , 3 and 4 runs in a game
I wrote the way i add the first two addends and hen add their sum with the third addend
2 + 3 + 4 =
5 + 4 = 9
So, 2 + 3 + 4 = 9
Therefore, They scored 9 runs all together.