Chapter 1, Lesson 5


1-5. A relate multiplication to repeated addition
Evaluate each set of sums and then write an equivalent statement using multiplication as well as addition.
a.
7 + 7 + 12 + 12 = ?
b. 3 + 9 + 3 + 9 + 9 + 9 = ?

1-5.B find the absolute value of an integer
Which expression does not have a value of 0?
(a)
|0| (b) |6| — |—6|
(c) |—6| — 6 (d) —|6| — |—6|