Whole # Operations
How many questions are there, in total, in today's game?
25
5 columns, 5 questions each (5x5 = 25)
82 __ 43
a. >
b. <
c. =
c. =
82 = 64
43 = 64
-7 +(8)(7) + 3
52
Give the prime factorization of 72.
23 x 32
or: 2x2x2x3x3
what is the answer to this equation (displayed in "counters")?
(-)(-)(-)(-)(-)(-) + (+)(+)(+)(+)(+)(+)
0
What is 357 divided by 7 ?
51
How do you know if a number is divisible by 4?
The last 2 digits of the number, form a number that is divisible by 4.
examples: 516, 732, 108
17 + 3(4) - 20/2
19
What is the greatest common factor of 45 and 120?
15
7 + (-12)
-5
List all of the factors of 64.
1, 2, 4, 8, 16, 32, 64.
True or False.
The following expressions are equal because of the associative property of multiplication:
(8 x 2) x 5 = 8 x (2 x 5)
True!
30-28/4x2
(/ = division sign)
16
What is the least common multiple of 8 and 28?
56
82 +(-71) + 176
187
64 __ 113
a. <
b. >
c. =
a. <
64 = 1296
113 = 1331
How do you know what 105 is equal to, without multiplying?
The exponent is the number of zeroes after 1!
105 = 100,000
(8-5)4 / 2+1
( "/" = fraction bar)
27
Find the greatest common factor of 32, 40 and 72.
8
Describe how to solve the problem:
-4 -(-6)
The 2 negative signs next to each other become one plus sign: -4 + 6
Then, you can either:
a. use the commutative property of addition to switch the -4 and 6, OR
b. solve the problem, knowing that 6 has a greater absolute value, so your answer is going to be positive, and find the difference.
Either way, the answer is 2.
26 x 142 = __
12,544
What is the prime factorization of 2,450?
2 x 52 x 72
OR: 2 x 5 x 5 x 7 x 7
Solve the expression:
52 + (7+11) x 2
61
Use factor trees to find the LCM (least common multiple) of 16 and 60.
LCM = 240
Simplify the following expression AND find the prime factorization of the answer.
(72 - (22+21)) x (12 +1 x -4)
answer = 48
prime factorization of 48 = 24 x 3