On a number line, point A is at -6 and point B is at 4. What is the distance between A and B?
10 units
What is the absolute value of -72
72
Which integer is the best approximation for pi?
3
What is the value of 50?
1
Evaluate: 1,7810
1
What is the additive inverse of -8? What is the sum of -8 and its additive inverse?
8; the sum is 0
What is the distance between -7 and 5 on a number line?
12 units
Between which two consecutive integers does the square root of 3 lie?
1 and 2
What is 3-2 as a simple fraction?
1/9
What are All positive and negative integers, fractions and decimal numbers called?
Rational numbers
Evaluate: -24 + 37
13
Evaluate: 6 - (-15)
21
A number line runs from 7 to 9 marked in halves. Between which two marks does the square root of 61 fall, and which mark is near?
between 7.5 and 8; closer to 8
What is 35 x 3-2 with a single positive exponent?
33
What are numbers that cannot be expressed as a ratio of two integers, their decimal expansions are nonending and nonrepeating called?
Irrational numbers
Evaluate: -3 1/4 + 5 1/5
2 1/4
A submarine is at -86.5 meters and a buoy anchor is at -110.2 meters. How far apart are they vertically?
23.7 meters
Which value is great? square root of 71 or 8.5?
8.5 because 82 = 72.25 and 72.25 > 71
Evaluate: (1/2)-3
8
Order 3pi, square root of 81, and 9.5
square root of 81, 3pi, 9.5
On a number line, x is negative and y is positive, and x is farther from 0 than y. What can you conclude about x + y?
The sum is negative
Point C is at -3 1/2. Point D is 5 1/4 units away from C. Find both possible locations for D.
1 3/4 and -8 3/4
Which expression has the greater value, 2pi or 6.5?
6.5 because 2pi is about 6.28 < 6.5
Evaluate: (2/3)2 x (2/3)-4
Make sure you write as a simple fraction.9/4
Name and integer that lies between 2pi and 3pi.
7, 8, or 9