Ch2 Check My Progress

36

Sample Answer: 3 to the power of 2 x 5 to the power of 3

45

Sample Answer: 3 to the power of 2 x 5 to the power of 3

Write 13x13x13x13 using an exponent.

Sample Answer: 3 to the power of 2

Write 7x7x7 using exponents

Sample Answer: 3 to the power of 5

Sample Answer: 3x3x3 ; 27

Hint: hmm...same for both?

Sample Answer: [as a product of the same factor] ; [value]

Hint: 23 x 1, then add two zeros

Hint: Solve basic fact, add remaining zeros

Sample Answer: 3 to the power of 2 ; 9 cubic ft

Hint: First find out how many is 10² students? Now do one more step to find the total cost.

Sample Answer: $400

Hint 1: So you would do the factor tree for both 130 and 165. Now you will see which prime number they have in common.

Hint 2: 165 = 5x33

Sample Answer: 9