**2.3 Using Commutative and Distributive Properties**

3.OA.5 Apply properties of operations as strategies to multiply and divide.2

2 Students need not use formal terms for these properties.

3.OA.7 Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit

4 A range of algorithms may be used.

3.NBT.3 Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.

• How can you show the strategies you use to multiply numbers?

• How can you demonstrate multiplication equations within 100?

• How can you show two ways to explain multiplication of a one-digit by a multiple of 10?

• How can you accurately add and subtract within 1,000 using at least two strategies?

*Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known. (Commutative property of multiplication.) 3 × 5 × 2 can be found by 3 × 5 = 15, then 15 × 2 = 30, or by 5 × 2 = 10, then 3 × 10 = 30. (Associative property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive property.)*2 Students need not use formal terms for these properties.

__FACT FAMILY GAMES__-CLICK HERE**Multiply and divide within 100.**3.OA.7 Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit

**Use place value understanding and properties of operations to perform multi-digit arithmetic.****4**4 A range of algorithms may be used.

__THAT'S A FACT MATH GAME__-CLICK HERE__MULTIPLICATION FLASHCARDS__-CLICK HERE__METEOR MULTIPLICATION__-CLICK HERE__MULTIPLY TUNNEL KIDS GAMES__-CLICK HERE**3.NBT.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.**

__MULTIPLICATION PRACTICE TEST__-CLICK HERE__-__**INTERACTIVE MATH GAMES AND ACTIVITIES****CLICK HERE**3.NBT.3 Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.

__-__**MENTAL MULTIPLICATION****CLICK HERE**

__MULTIPLICATION TRICKS__-CLICK HERE**Essential questions**• How can you show the strategies you use to multiply numbers?

• How can you demonstrate multiplication equations within 100?

• How can you show two ways to explain multiplication of a one-digit by a multiple of 10?

• How can you accurately add and subtract within 1,000 using at least two strategies?