3rd Grade_Envision Math_Multiplying by Multiples of 10

You will learn some strategies and methods for multiplying by multiples of 10.

Apply properties of operations as strategies to multiply and divide. Properties include commutative and associative properties of multiplication and the distributive property. (Students do not need to use the formal terms for these properties.)

Multiplying by multiples of 10

​The order of operations are the rules that tell us the sequence in which we should solve an expression with multiple operations. The order is PEMDAS: Parentheses, Exponents, Multiplication, and Division (from left to right), Addition and Subtraction (from left to right).

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Order of Operations

Dropdown

Show how to find the product using properties of multiplication. Select your answer from the drop downs.



5 × 70 = 5 × (​

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× 10)

5 × 70 = (5 ×​

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) × 10

5 × 70 = ​

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× 10 =​

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Dropdown

6 × 80 = (3 + ​

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) × 80

Dropdown

6 × 80 = (3 × ​

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) + (3 × ​

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)

Dropdown

6 × 80 = (240 + ​

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) =​

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Dropdown

Another row is added to the picture graph for the 100 books that Grade 5 read. How many more book symbols would be in the row for Grade 5 than for Grade 3?​ ​

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Multiple Select

Which products are equal to 300? Select all that apply.

• 3x10

• 5x60

• 6x50

• 5 x (6 x 10)

• 3 x (1 x 10)

Multiple Select

Which products are equal to 160? Select all that apply.

• 2 x 80

• 4 x 40

• 3 x 50

• 4 x (4 x 10)

• 6 x (2 x 10)