MENTAL MATH
is 21 prime?
yes it is prime.
what is the acronym for orders of operation?
PEMDAS
4e=4 e=?
e=1
What property is this 4+10=14 10+4=14
commutative of addition
what is the factors for 21
21,7,3,1
is 69 prime
No it is not
21+69x2
1470
22x=44
x=2
what property is this? 1x4
It is multiplicative identity property
What are the factors for 69
69,23,3,1
Is 69x21 prime.
yes sirrr.
(1+1)11 div 1 +1 -1
3
24-x=9
x=15
What property is this (4 x 8)x 2. (8 x 2)x 4.
Associative of multiplication
What are the factors for 101
101,1
is 980x2 prime?
nope.
(1x1div1) 21-(-0)x19
21
120+y=133
y=13
What property is this 36 x 1= 36
Multiplication of one.
What are the factors for 365
1,5,73,365
MENTAL MATH
is 44+57 prime?
yep it is prime.
Mental math
21+0x1
21
22-ty=100,000
ty=(-99978)
What property is this 1+(2+3)=2+(1+3)
associative of addition.
What are the factors for 911
911,1
MENTAL MATH
is 327+314 prime
yes it is prime
MENTAL MATH
45+22x2
89
900y=1350
y=1.5
What property is this 39+23=23+39.
Commutative of addition.
What are the factors for 666
1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666