Vocabulary
factorization
exponents & powers of 10
Estimating
Multiplying
100

What is an exponent?

The number of times a base is used as a factor (The tiny number).

100

Find the prime factorization of 32

2X2X2X2X2

100

Write the product using exponents: 5X5X5X5X5

55

100
estimate the product 61 x 68 

4,200

100

Solve 712 x 3

2,136

200

What is the power of 10?

A number like 10, 100, 1,000 and so on. It is the result of using only 10 as a factor.

200

Find the prime factorization of 63

3X3X7

200

Write each product using an exponent: 9X9X9X9

94

200

estimate the product 131 x 29

3,000 or 3,900

200

Solve: 182 x 6

1,092

300

Explain or show an example of the Distributive property.

To multiply a sum (expanded form) by a number. Multiply each addend by the number, and add the products.

300

Find the prime factorization of 250

2X2X2X5X5

300

Write each power as a product  of the same factor. Then find the value. 104

10X10X10X10 = 40,000

300

estimate the product 68 x 7

680 or 700

300

Solve 806 x 7

5,642

400

What is prime factorization?

A way of expressing a composite number as a product of its prime factors.

400

Find the prime factorization of 49

7X7

400

9,000 X 3

27,000

400

Why do we estimate?

To get a quick answer that will be close to the correct answers. It also helps with checking our answer to make sure it makes sense. 

400

Solve 51 x 82

4,182

500

What are compatible numbers?

Numbers in a problem that are easy to work with mentally.

500

Find the prime factorization of 72

2X2X2X3X3

500

44 x 102

44 X 10 X 10 =4,400

500

estimate the product 33 x 6

330 or 300

500

Solve 21 x 42

882

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