Understanding the Number 18

The video tutorial explains how to determine the number of additional monkeys needed for a party. Starting with 10 monkeys, the goal is to reach 18. The number 18 is broken down into 1 ten and 8 ones, illustrating that 8 more monkeys are needed. The process is visually verified by counting monkeys, reinforcing the concept of addition and number breakdown.

Why does the party need more monkeys?

• To replace some monkeys

• To make it more fun

• To reach a total of 18 monkeys

• To have an even number of monkeys

What does the '1' in the number 18 represent?

• 1 unit

• 1 monkey

• 1 hundred

• 1 ten

How many ones are there in the number 18?

• 1

• 18

• 8

• 10

If you start with 10 monkeys, how many more do you need to reach 18?

• 5

• 6

• 7

• 8

What is the sum of 10 and 8?

• 19

• 18

• 17

• 16

How many monkeys are added to reach 18 in the visual verification?

• 6

• 9

• 8

• 7

What is the first step in visually verifying the number of monkeys?

• Copy and paste a monkey

• Count the existing monkeys

• Draw a monkey

• Subtract monkeys

How many groups of 10 are there in 18?

• 3

• 2

• 1

• 0

What is the final number of monkeys needed for the party?

• 10

• 15

• 18

• 20

What is the mathematical expression for 18?

• 9 + 9

• 10 + 8

• 20 - 2

• 15 + 3