Multiplication looks at equally sized groups. Multiplying by two means finding the total of $2$2 equally sized groups and is the same as doubling. Multiplying by four means finding the total of $4$4 equally sized groups and can be found by doubling the number, then double the answer.

Apply

Question 1

$2\times8$2×8

Question 2

$4\times8$4×8

Question 3

$7\times4$7×4

Remember!

Double means "multiply by $2$2."
To multiply a number by $4$4, you can use the Double, Double strategy. That means, double the number, then double the answer.

Outcomes

MA.3.NSO.2.4

Multiply two whole numbers from 0 to 12 and divide using related facts with procedural reliability.

PRACTICE: Multiply 2 and 4

Practice