PRACTICE: Multiply 2 and 4
Lesson
Practice
Multiplication looks at equally sized groups. Multiplying by two means finding the total of $$2 equally sized groups and is the same as doubling. Multiplying by four means finding the total of $$4 equally sized groups and can be found by doubling the number, then double the answer.
Apply
Question 1
$$2×8
Question 2
$$4×8
Question 3
$$7×4
Remember!
- Double means "multiply by $$2."
- To multiply a number by $$4, you can use the Double, Double strategy. That means, double the number, then double the answer.