Simplifying Numerical Expressions

What is the correct way to simplify this expression?

• 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.

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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

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

• 3 - 2

• 2 + 6

• 2 x 3

• 9 - 2

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

• Add 5 and 3.

• Divide 15 by 5.

• Multiply 8 by 40.

• Subtract 15 from 40.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Jason is playing a card game. In order to win his round, he must correctly match a numerical expression card with the simplified form of the expression. Drag and drop a pair of cards and match the expression to the correct answer.

• 23

• 35

• 6[7 + (3 x 12)]

• 540

• 15 + [30 ÷ (5 x 3)]

• 27

• [4+(6x7)] ÷2

• [(8+15) x 3] ÷3

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which of the following has the parentheses placed properly to have an answer of 6?

• (32 + 16) ÷ 8

• 32 + (16 ÷ 8)

• 32 + 16 ÷ 8

• (32 + 16 ÷ 8)

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which of the following numerical expressions does NOT simplify to 34? NOTE: the * represents multiplication

• 14 + (5 * 4)

• 3[14 - (2 + 4)]

• 58 - 4(10 - 4)

• [9 + (3 * 7)] + 4

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

• 1

• 4

• 144

• 288

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CCSS.7.NS.A.3

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.

• Addition was done first and you should have subtracted first

• There is a subtraction error

Tags

CCSS.7.NS.A.1D

• 20
• 40
• 30
• 50

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CCSS.5.OA.A.1

CCSS.5.OA.A.2