Thursday: Simplifying Numerical Expressions

What is the correct way to simplify this expression?

6 x (12 + 3)

• Add 3 and 12, and then add that sum to 6.

• Add 3 and 12, and then multiply that sum by 6.

• Multiply 6 by 12, and then add 3 to that product.

• Multiply 6 by 12, and then multiply 6 by 3. Then find the difference between these two products.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

(11 x 4) + 9

• 53

• 63

• 83

• 143

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which statement describes how to simplify 8 + [4 x (3 + 6)]

• Add 8 and 4, multiply the sum by 3, and then add 6.

• Multiply 4 by 3, add 6 to that product, and then add that to 8.

• Add 8 and 4, add 3 and 6, and then multiply both sums together.

• Add 3 and 6, multiply the sum by 4, and then add 8 to that product.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Kamiko wrote a problem for homework. The answer to her problem is 33. Which problem did Kamiko write?

• 3 x (4 + 5) + 6 =

• (3 x 4) + 5 + 1 =

• 2 x 4 + (5 + 6) =

• 3 x 4 + 5 + 6 =

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Ms. Barrientos wrote these directions on the board.

Add 6 and 3

Multiply the sum by 9.

Subtract 4 from the product.

Which expression represents Ms. Barrientos's directions?

• 6 + 3 x 9 - 4

• 6 + (3 x 9) - 4

• 6 + 3 x (9 - 4)

• (6 + 3) x 9 - 4

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which operation should Kenji do first to simplify the number expression?

9 - 2[(3 - 2) + 6]

• 3 - 2

• 2 + 6

• 2 x 3

• 9 - 2

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the first step to complete in simplifying this expression?

8 [(40 - 15)  $\div$  5] + 3

• Add 5 and 3.

• Divide 15 by 5.

• Multiply 8 by 40.

• Subtract 15 from 40.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Solve: 5 + 3 x 8

• 64

• 120

• 39

• 29

Tags

CCSS.7.NS.A.3

• 48

• 54

• 320

• 38

Tags

CCSS.7.NS.A.3

• 20
• 40
• 30
• 50

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2