Problem 1
To _____ the expression \(5(6 x)\) means to write it in simpler form: \(5(6 x)=30 x\)
Problem 5
For each pair of numbers, which one has the larger absolute value? a. 6 or 5 b. 8.9 or \(-9.2\)
Problem 6
Determine whether each statement is true or false. a. The sum of a number and its opposite is always \(0 .\) b. The sum of two negative numbers is always negative. c. The sum of two numbers with different signs is always negative.
Problem 6
Fill in the blanks. a. The product of an even number of negative numbers is _____. b. The product of an odd number of negative numbers is _____.
Problem 8
Fill in the blanks. A ______ number is any number that can be expressed as a fraction with an integer numerator and a nonzero integer denominator.
Problem 8
Fill in the blanks. The __ number \(7 \frac{1}{3}\) represents the sum of a whole number and a fraction: \(7+\frac{1}{3}\)
Problem 8
Complete each property of addition. Then give its name. a. \(a+(-a)=\) b. \(a+0=\) c. \(a+b=b+\) d. \((a+b)+c=a+\)
Problem 9
Fill in the blanks. 0.25 is called a ______ decimal and \(0.333 \ldots\) is called a ______ decimal.
Problem 9
Classify each item as an algebraic expression or an equation. a. \(m+18=23 \quad\) b. \(m+18\)
Problem 9
a. Give the name of each grouping symbol: \((.),[1,\\{]\) \(|\quad|,\) and \(-\) b. In the expression \(-8+2[15-(-6+1)]\), which grouping symbols are innermost, and which are outermost?