1. 3.OA.7 Multiply and Divide within 100

2. Multiply by zero What will the answer be….. 8 X 0 =

3. What will the product be? 1.9 x 0 = 2.0 x 3 = 3.7 x 0 = 4.1,999 x 0 = 5.0 x 99,999 =

4. What will the product be? 1.9 x 1 = 2.1 x 3 = 3.7 x 1 = 4.1,999 x 1 = 5.1 x 99,999 =

5. Doubles multiplying by 2 2 x 4 can be thought of as 4 doubled 2 x 6 = ? Explain how you know the answer based on doubles

6. Doubling twice multiplying by 4 4 x 5 can be thought of as 5 doubled twice Can someone explain this? Does this work anytime you multiply a number by 4?

7. Doubling three times multiplying by 8 8 x 5 can be thought of as 5 doubled three times Can someone explain this? Does this work anytime you multiply a number by 8?

8. Tens If we know 6 tens is 60. how can this help us with multiplying by a 10?

9. Square Numbers Why would we say 9 is a square number? Use 1 inch tiles or draw a picture to make another square number.

10. Multiplying Nines When you multiply by 9 you can think of as 10 groups minus one group of 3. Explain how you can relate: 3 x 10 = 30 3 x 9 = 27 Try to solve this problem mentally 9 x 6

11. Decomposing I don’t know what 6 x 7 is I do know 6 x 6 = 36 so I just need one more group of 6. 36 + 6 = 42 I will decompose the 8 into 5 and 3 8x 4 5 3 5 x 4 = 20 3 x 4 = 12 What does 8 x 4 = ?

12. What multiplication problem is represented here?

13. How can you solve this multiplication problem by splitting it up into two easier known products?

14. Ready, GO!! 1.4 x 7 2.8 x 3 3.6 x 9 4.5 x 4