All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 2 Lesson 1 Subtraction Stories will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 2 Lesson 1 Subtraction Stories
Explore and Explain
Answer:
Explanation:
There are 7 dragonflies sitting on a flower
2 fly away
7 – 2 = 5
So, 5 dragonflies are left on the flower.
Teacher Directions: Use 
to model. There are 7 dragonflies sitting on a flower. 2 fly away. How many dragonflies are left on the flower? Write the number.
See and Show
There are 6 cats on a fence.
1 cat jumps down off of the fence.
How many cats are left on the fence? 5 cats
Answer:
Explanation:
There are 6 cats on the fence
1 cat jumped down
6 – 1 = 5
So, there are 5 cats left on the fence.
Tell a number story. Use . write how many are left.
Question 1.
How many birds are left in the bird bath? ______ birds
Answer:
Explanation:
There are 9 birds in the bird bath
5 birds flew away
9 – 5 = 4
So, 4 birds are left in the bird bath.
Question 2.
How many ladybugs are left on the leaf? ____ ladybugs
Answer:
Explanation:
There are 6 ladybugs on the leaf
3 ladybugs left
6 – 3 = 3
So, 3 ladybugs are left on the leaf.
Talk Math How are addition and subtraction stories different?
Answer:
In addition stories we give the information to add, ask to find how many in all and in subtraction stories we give information to subtract, ask to find how many are left.
On My Own
Tell a number story. Use 
. Write how many are left.
Question 3.
How many ants are left on the leaf? ____ ants
Answer:
Explanation:
There are 10 ants on the leaf
6 left
10 – 6 = 4
So, there are 4 ants left on the leaf.
Question 4.
How many butterflies are left on the bush?
____ butterflies
Answer:
Explanation:
There were 4 butterflies on the bush
1 left
4 – 1 = 3
So, 3 butterflies are left on the bush.
Question 5.
How many kites are left on the ground? ___ kites
Answer:
Explanation:
There were 5 kites on the ground
3 flew in the sky
5 – 3 = 2
So, 2 kites are left on the ground.
Problem Solving
Use 
to solve.
Question 6.
There are 4 people hiking on a trail. 2 of the people go home. How many people are left?
____ people
Answer:
Explanation:
There are 4 people hiking on a trail
2 of the people go home
4 – 2 = 2
So, 2 people are left.
Question 7.
There are 8 bees near the hive. 3 bees fly away. How many bees are left?
____ bees
Answer:
Explanation:
There are 8 bees near the hive
3 bees fly away
8 – 3 = 5
So, 5 bees are left.
HOT Problem There are 6 tigers sleeping under a tree. 2 tigers wake up. The answer is 4 tigers. What is the question?
_____________________
_____________________
_____________________
_____________________
Answer:
There are 6 tigers sleeping under a tree. 2 tigers wake up. How many tigers are still sleeping?
McGraw Hill My Math Grade 1 Chapter 2 Lesson 1 My Homework Answer Key
Practice
Tell a number story. Use pennies to model Write how many are left.
Question 1.
How many birds are left on the window? ___ birds
Answer:
Explanation:
There were 8 birds on the window
3 birds flew from thewindow
8 – 3 = 5
So, 5 birds are still on the window.
Tell a number story. Use pennies to model if needed. Write how many are left.
Question 2.
How many animals are still drinking water?
____ animals
Answer:
Explanation:
5 donkeys were drinking water
3 left
5 – 3 = 2
So, 2 donkeys are still drinking water.
Question 3.
How many animals are left standing still?
_____ animals
Answer:
Explanation:
7 animals were standing
4 animals started moving
7 – 4 = 3
So, 3 animals are left standing still.
Test Practice
Question 4.
There are 8 hippos in a pond. 5 of the hippos get out. How many hippos are left in the pond?
(A) 9
(B) 6
(C) 3
(D) 0
Answer:
(C) 3
Explanation:
There are 8 hippos in a pond
5 of the hippos get out
8 – 5 = 3
So, 3 hippos are left in the pond.
Math at Home Tell subtraction stories to your child. Have your child use objects such as stuffed animals, toy cars, or crayons to model each story.
Answer:
There were 8 toys on the shelf. 3 toys fell down. How many toys are still left on the shelf?
Answer:
Explanation:
There were 8 toys on the shelf
3 toys fell down
8 – 3 = 5
So, 5 toys are still left on the shelf.