Write 65 in expanded form
6 xx 6xx6xx6xx6
Solve
2xx(5+7)
24
5
Find the least common multiple of 12 and 22
132
Write
10xx10xx10xx10xx10xx10xx10
as an exponent.
107
Solve
(4+3)^2-4
45
What is the greatest common factor of 18 and 45?
9
Find the least common multiple of 20 and 35
140
Solve 44
256
Solve
[27-(63÷9)]+2^3
28
What is the greatest common factor of 12, 20, and 24?
4
Find the least common multiple of 2, 3, and 7
42
Solve 133
2197
Solve
124÷2+(27xx8)
278
What is the greatest common factor of 38 and 95?
19
Find the least common multiple of 3, 5, and 11
165
What is not a perfect square?
144, 150, 81
150
6^2 ÷ [(2 + 4) × 2^3 ]
1728
39
A radio station gave away $10 to every 10th caller, $15 to every 15th caller, and a free concert ticket to every 25th caller. The station stopped the giveaway once a single caller won all three prizes. How much money was given away?
$300