Topic 3 Vocabulary

Another word for a number sentence.

• equation
• varible
• estimate
• rounding

One way to estimate a number is to

• round the number
• multiply
• divide
• add

The answer to a multiplication problem is

• the product
• facator
• varible
• estimate

In the equation 9x5=45, 9 and 5 are both....

• factors
• addends
• products
• sum

Using 50 for the number of weeks in a year is an....

• underestimate
• overestimate

A quantity that is unknown maybe represented by a...

• varible
• equation
• product
• rounding

A__________is greater that the actual estimate.

• overestimate
• underestimate

These are the products found by breaking one of two factors into ones, tens, hundreds.

• partial products
• factors
• sum
• divisor