Mastering Addition and Subtraction with Gorillas

The video tutorial explains two math problems. The first involves determining how many gorillas were originally lifting weights in a gym after three more joined. The second problem involves calculating how many cookies were eaten by a sister from a bag of 13, leaving 8. Both problems are solved using subtraction and logical reasoning, with visual aids like diagrams to assist in understanding.

How many gorillas were initially lifting weights in the gym?

• 3 gorillas

• 17 gorillas

• 14 gorillas

• 11 gorillas

Tags

CCSS.1.OA.A.1

How many gorillas entered the gym to start running?

• 5 gorillas

• 2 gorillas

• 4 gorillas

• 3 gorillas

Tags

CCSS.2.OA.A.1

What is the total number of gorillas in the gym after the new ones started running?

• 20 gorillas

• 17 gorillas

• 15 gorillas

• 14 gorillas

Tags

CCSS.1.OA.A.1

How many cookies did the sister eat?

• 5 cookies

• 8 cookies

• 3 cookies

• 13 cookies

Tags

CCSS.1.OA.A.1

What was the total number of cookies before the sister ate some?

• 13 cookies

• 18 cookies

• 5 cookies

• 8 cookies

Tags

CCSS.2.OA.A.1

How many cookies were left after the sister ate some?

• 8 cookies

• 10 cookies

• 3 cookies

• 5 cookies

Tags

CCSS.2.OA.A.1

If you subtract the number of cookies eaten from the original number, what do you get?

• 8 cookies

• 18 cookies

• 5 cookies

• 13 cookies

Tags

CCSS.2.OA.A.1

Adding the number of cookies eaten to the number left, what's the result?

• 13 cookies

• 18 cookies

• 5 cookies

• 8 cookies

Tags

CCSS.1.OA.A.1

What mathematical operation do you use to find out how many cookies were eaten?

• Addition

• Subtraction

• Division

• Multiplication

Tags

CCSS.2.OA.C.4

What mathematical operation helps to find the original number of cookies?

• Addition

• Division

• Subtraction

• Multiplication

Tags

CCSS.3.OA.A.3