Prime Factorization, LCM & GCF!
Write the prime factorization of 81
3*3*3*3
75,829-46,920
28,909
Write this is expanded form and standard form
4^2
4*4=16
2/3*1 4/5
2/3*9/5=18/15=6/5=1 1/5
4.157 + 12.349
16.506
Write the prime factorization of 48
2*2*2*2*3
64,192+11,892
76,084
Write this in expanded form and standard form!
3^5
3*3*3*3*3=243
3 5/6 + 2 1/8
3 20/24 + 2 3/24=5 23/24=143/24
9.12-8.987
0.133
Find the GCF of 42 and 60
6
You have 20 yellow beads, 12 red beads, and 18 orange beads to make identical bracelets. What is the greatest number of bracelets you can make using all the beads?
Find the GCF of 20, 12, and 18.
GCF: 2 so you can make 2 bracelets using all the beads. You would be using 10 yellow beads, 6 red beads, and 9 orange beads for each bracelet.
1919/101
19
16 + 18 ÷ 6 - 5
Do the division first! 18 ÷ 6 = 3
16 + 3 = 19
19 - 5 = 14
Answer: 14
4 2/3-3 4/5
14/3-19/5=70/15-57/15=13/15
5.423*3.12
16.91976
Find the LCM of 12 and 16
48
Kathleen is baking cookies but only needs to make 1/3 of the recipe. If the recipe asks for 2 1/2 cups of flour, how much flour does she need?
Find 1/3 of 2 1/2 so Kathleen needs 5/6 cups of flour to make one-third of the recipe.
1/3*2 1/2 = 1/3 * 5/2=5/6
56*97
5432
[4(5-3)]/2
4
4 1/3 ➗1 4/9
13/3*9/13=3
You have soccer practice every fourth day and swim practice every twelfth day. On what day will you have both lessons on the same day? Choose the soonest day.
Soccer: 4, 8, 12, 16, 20, 24
Swim: 12, 24
On the 12th day, you will have both lessons on the same day.
Apples cost $0.99 per pound. You buy 3.25 pounds of apples. How much do the apples cost in total? Since this is a money problem, round to the nearest hundredth.
$3.22
3468/204
17
2^3-2(3-1)+3
8-2(2)+3 = 8-4+3 = 4+3
Answer: 7
7 2/3 ➗3 5/6
23/3*6/23=2
6.643➗1.82
3.65