Numerical Expressions

1

100

Write an expression to model the quotient of 21 and 7

21 div 7

200

What is the first step for evaluating this expression? (2-1)+ 1²

Evaluate the parentheses first.

300

Write an expression to model the product of 12 and the difference of 5 and 3.

12x(5-3)

400

Write this numerical expression in a sentence.      (120-56)x3 

Subtract 120 and 56, then multiply by 3.

500

Write a sentence for this expression. 

5+(2-1)

Add 5 to the difference of 2 and 1.

2

100

Compare the expressions. Which gives you the solution of 2? (12-11) +1 and 2+3-1

(12-11)+1

200

6+1-1²

6

300

(18+6)x2 

48

400

After looking if there are parentheses and exponents in the expression, what is my next step?

The next step is to look for multiplication or division.

500

What is the order of operations?

PEMDAS

Parentheses, Exponents, Multiply, Divide, Add and Subtract

3

100

Evaluate 3x(8-3)

15

200

Evaluate 6+7x5

41

300

Evaluate

(7+8)div(12-7)

3

400

Evaluate 8x3+6x4

48

500

Evaluate 8-3+1

6

4

100

Explain the order that you would evaluate 

56-(8x2)

First multiply 8x2, then subtract the product from 56.

200

Add parentheses to make the expression 9x4-2 to make solution of 18

9x(4-2)

300

True or False. An expression contains an equal sign.

False

400

Add parentheses to make the expression 18-11x4+3,  31

(18-11)x4+3

500

Add parentheses to make the expression below equal to 16

9+28div7-3

9+28div(7-3)