Kindergarten Math
Addition and Subtraction
Unit 5
Lesson 1: Addition and Subtraction
Lesson 1: Addition and Subtraction
Addition Sign!
Addition Sign!
Subtraction Sign!
Subtraction Sign!
Equal Sign!
Equal Sign!
Addition is PUTTING THINGS TOGETHER!
Addition is PUTTING THINGS TOGETHER!
To add 3 and 2, combine the 3 circles and 2 circles and count how many there are!
To add 3 and 2, combine the 3 circles and 2 circles and count how many there are!
What is 3 + 1?
What is 3 + 1?
Subtraction is TAKING THINGS AWAY!
Subtraction is TAKING THINGS AWAY!
To subtract 2 from 5, take away 2 circles from the 5 circles then count how many there are!
To subtract 2 from 5, take away 2 circles from the 5 circles then count how many there are!
Take away 2 of the 5 original balls! 3 are left!
Take away 2 of the 5 original balls! 3 are left!
5 - 2 = 3
5 - 2 = 3
Play this to ADD Numbers!
Play this to SUBTRACT Numbers!
Lesson 2: Math and Stories
Lesson 2: Math and Stories
Nadya had 6 bicycles. Mohammad's brother's name is Amira. It was Amira's birthday so Nadya decided to give him 2 of the bicycles. How many bikes does Nadya have now?
Nadya had 6 bicycles. Mohammad's brother's name is Amira. It was Amira's birthday so Nadya decided to give him 2 of the bicycles. How many bikes does Nadya have now?
6 - 2 = 4 Bikes
6 - 2 = 4 Bikes
Mohammad had 10 pieces of candy. He ate 3 of them. How many pieces of candy does Mohammad have now?
Mohammad had 10 pieces of candy. He ate 3 of them. How many pieces of candy does Mohammad have now?
10 - 3 = 7
10 - 3 = 7
Candies
Candies
Amira had 4 bikes. It was Amira's birthday, so her sister, Nadya, gave her 2 bicycles as a gift. How many bicycles does Amira have now?
Amira had 4 bikes. It was Amira's birthday, so her sister, Nadya, gave her 2 bicycles as a gift. How many bicycles does Amira have now?
4 + 2 = 6 Bikes
4 + 2 = 6 Bikes
Bruce baked 9 cookies. His brother ate 2 of them and he ate 7 of them. How many cookies is Bruce left with?
Bruce baked 9 cookies. His brother ate 2 of them and he ate 7 of them. How many cookies is Bruce left with?
9 - 2 - 7 = 0 Zero Cookies
9 - 2 - 7 = 0 Zero Cookies
Lesson 3: Let's Make 10!
Lesson 3: Let's Make 10!
Sums of 10 make a rainbow!
Sums of 10 make a rainbow!
Look at this "Make 10" Rainbow! If the numbers are the same color, they add up to 10!
Look at this "Make 10" Rainbow! If the numbers are the same color, they add up to 10!
How many blocks does it take for each to reach 10? Look at the different block colors to see!
How many blocks does it take for each to reach 10? Look at the different block colors to see!