What is the pattern when multiplying by 9?

The tens digit increases by 1 and the units digit decreases by 1.

What is the zero property of multiplication?

Any number multiplied by 0 equals 0.

How can you check your multiplication by 9?

You can use the addition of the digits of the result; they should sum to 9.

What is the relationship between multiplication and addition?

Multiplication is repeated addition.

What is the commutative property of multiplication?

Changing the order of the factors does not change the product.

What is the associative property of multiplication?

Changing the grouping of the factors does not change the product.

What is a quick method to multiply by 9 using fingers?

Hold up all ten fingers; for 9 times n, fold down the nth finger. The fingers to the left of the folded finger represent the tens, and the fingers to the right represent the units.

Multiplying by 9's Flashcards

Student preview

16 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the result of multiplying any number by 9?

Back

The result is 9 times that number.

Tags

CCSS.3.OA.D.9

2.

FLASHCARD QUESTION

Front

What is 9 times 1?

Back

9

Tags

CCSS.3.OA.C.7

3.

FLASHCARD QUESTION

Front

What is 9 times 2?

Back

18

Tags

CCSS.3.OA.C.7

4.

FLASHCARD QUESTION

Front

What is 9 times 4?

Back

36

Tags

CCSS.3.OA.C.7

5.

FLASHCARD QUESTION

Front

What is 9 times 5?

Back

45

Tags

CCSS.3.OA.C.7

6.

FLASHCARD QUESTION

Front

What is 9 times 7?

Back

63

Tags

CCSS.3.OA.C.7

7.

FLASHCARD QUESTION

Front

What is 9 times 8?

Back

72

Tags

CCSS.3.OA.C.7

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