2.3 Using Commutative and Distributive Properties
3.OA.5 Apply properties of operations as strategies to multiply and divide.2 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
MULTIPLICATION PRACTICE TEST-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.
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?
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
MULTIPLICATION PRACTICE TEST-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.
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?