Share 2 Review (WBK 145-147) #1-25
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1) What are compatible numbers?
Compatible numbers are easy to multiply mentally.
2) What is a product?
The product is the answer after multiplying.
3) What is a power of 10?
A power of 10 is a number like 10, 100, or 1,000, and so on. It is the result of using 10 as a factor.
4) What is a factor?
A factor is a number that is multiplied by another number, and it is a number that divides into another number evenly.
5) What is prime factorization?
Prime factorization is a way to express a composite number by multiplying prime factors.
6) What is the Distributive Property?
The Distributive Property states that you can break-up a factor into addends and multiply another factor by the addends and then add the partial products.
7) What is an exponent?
In a power, it is the number of times the base is used as a factor.
8) What is the base?
In a power, this is the number used as a repeated factor.
9) What is the a power?
This is a number that is found by raising a base to an exponent.
10) Find the prime factorization of each number. 12
2^2 x 3
11) Find the prime factorization of each number. 42
2 x 3 x 7
12) Write each product using an exponent. 10 x 10
10^2 "ten squared"
13) Write each product using an exponent. 5 x 5 x 5 x 5
5^4 "five to the fourth"
14) Find each product mentally. 73 x 10^2
7,300
15) Find each product mentally. 60 x 40
2,400
16) Estimate first. Then multiply to find the actutal product. 72 x 36
70 x 40 = 2,800; 72 x 36 = 2,592
