Lunar Arithmetic Concepts and Operations

The video introduces lunar arithmetic, a system where addition and multiplication rules differ from traditional arithmetic. In lunar arithmetic, the larger digit is chosen for addition, and the smaller for multiplication. The video explores lunar squares and primes, explaining how primes are defined differently on the moon. It concludes with a proof that there are infinitely many lunar primes.

In lunar arithmetic, what is the result of adding 5 and 7?

• 10

• 7

• 5

• 12

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

How do you determine the result of multiplying two numbers in lunar arithmetic?

• Subtract them

• Pick the smaller

• Pick the larger

• Add them

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the lunar addition of 58 and 19?

• 59

• 78

• 77

• 67

In lunar arithmetic, what is the result of multiplying 17 by 24?

• 68

• 34

• 408

• 124

Tags

CCSS.6.EE.A.1

What is the lunar square of 6?

• 12

• 36

• 6

• 18

Tags

CCSS.4.OA.B.4

How is the number 9 treated in lunar arithmetic when determining primes?

• As a zero

• As a one

• As a prime

• As a composite

Tags

CCSS.4.OA.B.4

Which of the following is a lunar prime?

• 29

• 27

• 18

• 19

Tags

CCSS.4.OA.B.4

Why is the number 7 not considered a lunar prime?

• It is even

• It is a composite number

• It can be expressed as 8 times 7

• It is less than 9

What is the smallest lunar prime?

• 19

• 29

• 39

• 9

Tags

CCSS.4.OA.B.4

What is the significance of the number 109 in lunar arithmetic?

• It is a composite number

• It is a perfect square

• It is a lunar prime

• It is a factor of 9

Tags

CCSS.4.OA.B.4