Module 2 Lesson 3-Numerical Expressions

What strategy do we use to evaluate numerical expressions?

• Mr. DL

• Does McDonald's Sell Burgers Regularly

• P.E.M.D.A.S. (please excuse my dear aunt Sally)

Answer explanation

When solving numerical expressions, we must follow the "Order of Operations" also known as P.E.M.D.A.S.!!!

Tags

CCSS.7.NS.A.3

Choose the correct numerical expression for...

The sum of 21 and 4, doubled

• 21 x 2 x 4

•  $\left(21+4\right)\times2$  

•  $\left(8+42\right)$ x 2

• 21 + 8 + 4 x 2

Answer explanation

Think about what it means to double an amount!

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Choose the correct numerical expression for...

5 times the sum of 7 and 23

• $5\times\left(7+23\right)$

• $\left(5\times7\right)+23$

• $\left(23\times5\right)+7$

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Choose the correct numerical expression for...

two times the difference between 49.5 and 37.5

• $\left(49.5\times2\right)+\left(37.5\times2\right)$

• $2\times\left(49.5+37.5\right)$

• $\left(49.5-37.5\right)\times2$

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Choose the correct numerical expression for...

The sum of 3 fifteens and 4 twos

• 315 + 42

• (3 x 15) + (4 x 2)

• 315 x 42 =

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Choose the correct numerical expression for...

Triple the sum of 45 and 55

• (45 + 55) x 3

• 3 x (45 - 55)

• 45 + 45 + 45 - 55 =

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

 $10\times\left(2.5+13.5\right)$ 

 What is the correct word form for the numerical expression above?

• ten times the difference between 13.5 and 2.5

• double the sum of 2.5 and 13.5

• ten times the sum of 2.5 and 13.5

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

 $\left(98-78\right)\times11$  

What is the correct word form for the numerical expression above?

• 98 times 11 plus 78 times 11

• 11 times the difference between 98 and 78

• 11 times the sum of 98 and 78

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2