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Place Values
Subtract!
Add!
Multiply!
Divide!
Vocabulary
100

Tens

10,375

7


100

Mental Math

20-10

10

100

MENTAL MATH

75 + 75 = 

150

100

MENTAL MATH 

3 x 7

21

100

100/25

4

100

What is the meaning of the term "variable"

the letter behind a number in an expression or equation

200

Hundreds

732


7

200

Mental Math

Fiona wants to buy a phone charger worth $42, but she only has a $50 bill How much change will she receive?

$8.00

200

345 + 134 = 

 479

200

MENTAL MATH

5 x 5

25


200

Mental Math

60 divided into 10 groups

6

200

What does the term coefficient mean in math?

the number that is in front of a variable(letter) in an expression or equation
300

Ones

1,923

3

300

Mental Math

60 - 30 = 

30

300

MENTAL MATH

50+50 = 

100

300

Mental Math 

8 x 5 = ?

40

300

MENTAL MATH

40 divided into 5 groups

8

300

What is the difference between an expression and an equation?

expression cannot be solved, but it can be simplified by like terms; equations can be solved to finding the value of the variable 

400

Hundreds

2,019

0


400

500-200

300

400

MENTAL MATH

3 + x = 24

 x = 21

400

Mental Math

10 x 10

100

400

MENTAL MATH 

45 divided into 9 groups 

5

400

What is the answer to a multiplication problem called?

Product

500
Thousands

14,379

4

500

1000-500

500
500

MENTAL MATH

155 + 245 = ? 

400

500

Mental Math

12X12

144

500

MENTAL MATH

100 divided into 5 groups

20

500

what is the answer to a division problem called?

Quotient