Exponentiation can be understood as repeated multiplication. That means 37 can be interpreted as multiplying __________ repeatedly __________ times. Likewise, multiplication can be understood as repeated _________________. That means 7 x 3 can be interpreted as __________________ 3 repeatedly __________ times.

When working with very large or very small numbers we don't always want to write out all of the zeros. One strategy for shortening these numbers is to write these them in terms of powers of ten. To do this, we consider how many times we need to multiple ten by itself to get the desired output. Example: • 10 = 10¹ • 100 = 10 x 10 = 10² • 1000 Try it = Answer: 10 × 10 × 10 = 10³ Write ten thousand as a power of ten. Calculator

If each equation demonstrates a property of whole-number addition, fill in the blank with the appropriate number and then name the property a. (4 + 1 = 7)+ 9 = 4 +( ____ + 9) b. 4 + 0 = ____. c .6 + 3 = 3 +  ____. d. 9 +  ____ = 9.

Use the repeated addition definition of multiplication to compute the following.  First write out the meaning of the multiplication and then compute the answer. 2 ×× 4 =    = Correct 8 ×× 2 =    = Correct 9 ×× 5 =