chapter 1,3,13 review.

Prime numbers

100

MENTAL MATH

is 21 prime?

yes it is prime.

200

is 69 prime

No it is not

300

Is 69x21 prime.

yes sirrr.

400

is 980x2 prime?

nope.

500

MENTAL MATH

is 44+57 prime?

yep it is prime.

600

MENTAL MATH

is 327+314 prime

yes it is prime

Order of operations

100

what is the acronym for orders of operation?

PEMDAS

200

21+69x2

1470

300

(1+1)1¹ div 1 +1 -1

3

400

(1x1div1) 21-(-0)x1⁹

21

500

Mental math

21+0x1

21

600

MENTAL MATH

45+22x2

89

Algebraic expressions

100

4e=4 e=?

e=1

200

22x=44

x=2

300

24-x=9

x=15

400

120+y=133

y=13

500

22-ty=100,000

ty=(-99978)

600

900y=1350

y=1.5

Properties

100

What property is this 4+10=14 10+4=14

commutative of addition

200

what property is this? 1x4

It is multiplicative identity property

300

What property is this (4 x 8)x 2.  (8 x 2)x 4.

Associative of multiplication

400

What property is this 36 x 1= 36

Multiplication of one.

500

What property is this 1+(2+3)=2+(1+3)

associative of addition.

600

What property is this 39+23=23+39.

Commutative of addition.

Factoring

100

what is the factors for 21

21,7,3,1

200

What are the factors for 69

69,23,3,1

300

What are the factors for 101

101,1

400

What are the factors for 365

1,5,73,365

500

What are the factors for 911

911,1

600

What are the factors for 666

1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666