Factors & Multiples
Express 340 as a product of its prime factors.
340 = 2 * 2 * 5 * 17
Use the calculator and find the square root of 11 and round to 3 significant digits
3.32
-2 + 5 +(-3) = ?
0
What is the cubic root of 27 ?
3
What is the greatest common factor of 84, 126, and 245 ?
GCF = 7
Evaluate the following using a calculator:
square root of (372 - 352)
12, -12
-1/3 + 2/5 = ?
1/15
True or False:
square root of 2, pi are irrational numbers but are real numbers non the less.
True
What is the least common multiple of 24 and 90 ?
LCM = 360
round 3,498,275 to the nearest 100
3,498,300
What is the multiplicative inverse of 2.1 ?
10/21
What is |-61.5|
61.5
Calculate (without using a calculator) the positive square root of 256 (Hint: Use prime factorization)
16
Times taken by Jim and Tom to answer a Math quiz are 54 seconds and 2 minutes ,respectively. Find the ratio of Tom's time to Jim's .
20:9
3-|-(-9)| = ?
-6
Time needed to assemble a car is inversely proportional to the number of workers at the assembly line. If it takes 20 hours from 4 workers to assemble a single car, how many hours does it take from 2 workers to assemble a similar car?
40 hours