Understanding Circles and Lines in Counting

Joey is working on his robot Emmett 2.0 but faces a math problem when the robot runs out of battery. Professor Rina helps Joey understand the concept of tens and ones using lines and circles. They count and group the tens and ones to calculate a total of 113. After solving the math problem, they decide to go outside and play.

What was Joey working on before Professor Rina arrived?

• A math assignment

• A science project

• A painting

• His robot Emmett 2.0

What problem did Joey face with Emmett 2.0?

• It was broken

• It was malfunctioning

• It was out of battery

• It was lost

What did Professor Rina offer to help Joey with?

• Math

• Science

• History

• Art

What does each line represent in the model?

• Five

• One

• Ten

• Twenty

What does each circle represent in the model?

• Twenty

• Ten

• Five

• One

Why did they rearrange the lines and circles?

• To confuse Joey

• To make counting easier

• To make a pattern

• To create a picture

How many tens did they count initially?

• Five

• Twelve

• Ten

• Seven

What was the total number of tens after adding the extra ten?

• Ten

• Nine

• Twelve

• Eleven

What number do eleven tens represent?

• 100

• 110

• 120

• 130

How many additional circles were there after counting the tens?

• Three

• Four

• Two

• One