Refer to our Texas Go Math Grade 5 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 5 Lesson 7.3 Answer Key Numerical Expressions.

## Texas Go Math Grade 5 Lesson 7.3 Answer Key Numerical Expressions

**Unlock the Problem**

A numerical expression is a mathematical phrase that has numbers and operation signs but does not have an equal sign. Some numerical expressions have parentheses.

Doug went fishing for 3 days. Each day he put $15 in his pocket. At the end of each day, he had $5 left. How much money did Doug spend by the end of the trip?

• Underline the events for each day.

• Circle the number of days these events happened.

Which expression matches the meaning of the words?

Think: Each day he took $15 and had $5 left. He did this for 3 days.

($15 – $5) ← Think: What expression can you write to show how much money Doug spends in one day?

3 × ($15 – $5) ← Think: What expression can you write to show how much money Doug spends in three days?

Answer:

The expression matches the meaning of the words is 3 × ($15 – $5).

Explanation:

Doug went fishing for 3 days. Each day he put $15 in his pocket. At the end of each day, he had $5 left. In one day Doug spend ($15 – $5). By the end of the trip Doug spend 3 x ($15 – $5). The expression matches the meaning of the words is 3 × ($15 – $5). Doug spend $30 by the end of the trip.

**Math Talk**

**Mathematical Processes**

Explain how the expression of what Doug spent in three days compares to the expression of what he spent in one day.

Answer:

**Example**

Which problem matches the expression $20 – ($12 + $3)?

Kim has $20 to spend for her fishing trip. She spends $12 on a fishing pole. Then she finds $3. How much money does Kim have now?

List the events in order.

First: Kim has $20.

Next: ________________

Then: ________________

Do these words match the expression? ____________

Answer:

First: Kim has $20.

Next: **$20 – $12 **

Then: **($20 – $12) + $3**

Do these words match the expression? **No
**Explanation:

Kim has $20 to spend for her fishing trip. She spends $12 on a fishing pole. The expression is ($20 – $12). Then she finds $3. Now the expression is ($20 – $12) + $3. Now Kim have $11. These words does not matches with the expression

**$20 – ($12 + $3)**.

Kim has $20 to spend for her fishing trip. She spends $12 on a fishing pole and $3 on bait. How much money does Kim have now?

List the events in order.

First: Kim has $20.

Next: ________________

Then: ________________

Do these words match the expression? ____________

Answer:

First: Kim has $20.

Next:

**$20 – $12**

Then:

**$20 – ($12 + $3)**

Do these words match the expression?

**Yes**

Explanation:

Kim has $20 to spend for her fishing trip. She spends $12 on a fishing pole and $3 on bait. The expression is $20 – ($12 + $3). These words matches the given expression $20 – ($12 + $3). Now Kim have $5.

**Share and Show**

**Circle the expression that matches the words.**

Question 1.

Teri had 18 worms. She gave 4 worms to Susie and 3 worms to Jamie.

(18 – 4) + 3

18 – (4 + 3)

Answer:

Explanation:

Teri had 18 worms. She gave 4 worms to Susie and 3 worms to Jamie. The expression that matches the words is

18 – (4 + 3). So draw a circle to this expression 18 – (4 + 3).

Question 2.

Rick had $8. He then worked 4 hours for $5 each hour.

$8 + (4 × $5)

($8 + 4) × $5

Answer:

Explanation:

Rick had $8. He then worked 4 hours for $5 each hour. The expression that matches the words is $8 + (4 × $5). So draw a circle to this expression $8 + (4 × $5).

**Write an expression to match the words.**

Question 3.

Greg walks dogs for 5 days. He walks 4 dogs each morning and 3 dogs each afternoon.

Answer:

**5 x (4 + 3)**

Explanation:

Greg walks dogs for 5 days. He walks 4 dogs each morning and 3 dogs each afternoon. The words that matches the expression is 5 x (4 + 3).

Question 4.

Lynda has 27 fewer fish than Jack. Jack has 80 fish.

Answer:

**80 – 27**

Explanation:

Lynda has 27 fewer fish than Jack. Jack has 80 fish. The words that matches the expression is 80 – 27.

**Write words to match the expression.**

Question 5.

34 – 17

Answer:

Varun had 34 cookies and he gave 17 of them to his friend.

Explanation:

Varun had 34 cookies and he gave 17 of them to his friend. These words matches the given expression 34 – 17.

Question 6.

6 × (12 – 4)

Answer:

For the last 6 years, Susie got $12 for her birthday and gave $ 4 of that to her little brother.

Explanation:

For the last 6 years, Susie got $12 for her birthday and gave $ 4 of that to her little brother. These words matches the given expression 6 x (12 – 4).

**Problem Solving**

**Write an expression to match the words.**

Question 7.

Jose has 9 pens. He buys 3 more. He shares all the pens equally among 6 friends.

Answer:

(9 + 3) ÷ 6

Explanation:

Jose has 9 pens. He buys 3 more. He shares all the pens equally among 6 friends. These words matches with this expression (9 + 3) ÷ 6.

Question 8.

Monique had $20. She spent $5 on lunch and $10 at the bookstore.

Answer:

$20 – ($5 + $10)

Explanation:

Monique had $20. She spent $5 on lunch and $10 at the bookstore. These words matches with this expression

$20 – ($5 + $10).

**Write words to match the expression.**

Question 9.

($8 + $14) – (4 × $5)

Answer:

Jasmine has $8 and her husband gave $14. She bought 4 chocolates which are $5 each. These words matches with the expression ($8 + $14) – (4 × $5).

Question 10.

(12 × 6) – (3 × 2)

Answer:

In one year, Pooja will get 6 balloons for every month. She gave two balloons each to her three brothers. These words matches with the expression (12 × 6) – (3 × 2).

**Connect Draw a line to match the expression with the words.**

Question 11.

Answer:

Explanation:

Fred catches 25 fish. Then he releases 10 fish and catches 8 more. The expression is (25 – 10) + 8. Draw a line from this words to the expression (25 – 10) + 8.

Nick has 25 pens. He gives 10 pens to one friend and 8 pens to another friend. The expression is 25 – (10 + 8). Draw a line from this words to the expression 25 – (10 + 8).

Jan catches 25 fish and lets 10 fish go. The expression is 25 – 10. Draw a line from this words to the expression

25 – 10.

**Problem Solving**

**Use the rule and the table for 12-13.**

Question 12.

**Represent** Write a numerical expression to represent the total number of lemon tetras that could be in a 20-gallon aquarium.

Answer:

**20 ÷ 2
**The total number of tetras in 20-gallon of aquarium is

**10**.

Explanation:

The fish in a aquarium allows 1 gallon of water for each inch of length. The lemon tetra is 2 inches length. The numerical expression 10 x 2 represents the total number of lemon tetras that could be in a 20-gallon aquarium. The total number of tetras in 20-gallon of aquarium is 10.

Question 13.

**H.O.T.** There are tiger barbs in a 15-gallon aquarium and giant danios in a 30-gallon aquarium. Write a numerical expression to represent the total number of fish that could be in both aquariums.

Answer:

**(15 ÷ 3) + (30 ÷ 5)**

The above numerical expression represents the total number of fish in both aquariums.

Explanation:

The fish in a aquarium allows 1 gallon of water for each inch of length. There are tiger barbs in a 15-gallon aquarium and giant danios in a 30-gallon aquarium. The tiger barbs is 3 inches length. The giant danios is 5 inches length. The numerical expression (15 ÷ 3) + (30 ÷ 5) represent the total number of fish in both aquariums.

Question 14.

Write a word problem for an expression that is three times as great as (15 + 7). Then write the expression.

Answer:

The three brothers Ram, Rahim, Robert each have 15 mangoes and 7 cherries with them. The total number of fruits altogether they have is 3 x (15 + 7). The expression is 3 x (15 + 7).

Question 15.

What’s the Question? Lu has 3 swordtails in her aquarium. She buys 2 more swordtails.

Answer:

How many gallons of water is needed in an aquarium when Lu buys two more swordtails along with the three swordtails already he have.

Question 16.

**Multi-Step** Tammy has 26 stamps. She buys 19 more stamps. She shares all the stamps equally among 9 friends. Write an expression to match the words. How many stamps does each friend get?

Answer:

The expression matches the words

**(26 + 19) ÷ 9**

(45) ÷ 9

**5**

Each friend gets 5 stamps.

Explanation:

Tammy has 26 stamps. She buys 19 more stamps. She shares all the stamps equally among 9 friends. The expression that matches the words is (26 + 19) ÷ 9. Add 26 stamps with 19 stamps the sum is 45 stamps. Divide 45 stamps by 9 friends the results is 5 stamps. Each friend get 5 stamps.

**Daily Assessment Task**

**Fill in the bubble completely to show your answer.**

Question 17.

Daniel started a video game with 30 tokens. He earned 8 more tokens for jumping on a star, but lost 6 tokens for falling into a hole. When he passed a checkpoint, his number of tokens doubled! Then he spent 20 tokens to buy a flashlight. Which expression shows how many tokens he has left?

(A) 2 × (30 + 8 – 6 – 20)

(B) 2 × (30 + 8) – (20 + 6)

(C) 2 × 30 + 8- 6- 20

(D) 2 × (30 + 8 – 6) – 20

Answer:

The expression 2 x (30 + 8 – 6) – 20 shows the token left with him.

So, option D is correct.

Explanation:

Daniel started a video game with 30 tokens. He earned 8 more tokens for jumping on a star, but lost 6 tokens for falling into a hole. The expression is (30 + 8 – 6). When he passed a checkpoint, his number of tokens is doubled. Then he spent 20 tokens to buy a flashlight. The expression 2 x (30 + 8 – 6) – 20 shows the token left with him.

Question 18.

Enrique brought $30 to the mall and spent $14 on a soccer ball and $6 on lunch. Which expression represents the situation?

(A) 30 ÷ (14 – 6)

(B) 30 – (14 + 6)

(C) 30 ÷ (14 – 6)

(D) 30 – 14 + 30 – 6

Answer:

The expression is 30 – (14 + 6).

So, option B is correct.

Explanation:

Enrique brought $30 to the mall and spent $14 on a soccer ball and $6 on lunch. The expression 30 – (14 + 6) represents the situation.

Question 19.

**Multi-Step** Terrel has 8 nickels. Heather has twice as many nickels as Terrel. Heather spends 4 nickels to buy a pencil. Each nickel is worth 5 cents. Which expression shows how many cents Heather has left?

(A) 5 + 2 + 8 – 4

(B) 5 × (2 × 8) – 4

(C) 5 × (2 × 8 – 4)

(D) 5 × 2 + 8 – 4

Answer:

**Texas Test Prep**

Question 20.

Josh has 3 fish in each of 5 buckets. Then he releases 4 fish. Which expression matches the words?

(A) (3 × 4) – 5

(B) (5 × 4) – 3

(C) (5 × 3) – 4

(D) (5 – 3) × 4

Answer:

The expression is (5 x 3) – 4.

So, option C is correct.

Explanation:

Josh has 3 fish in each of 5 buckets. Then he releases 4 fish. The expression that matches the words is (5 x 3) – 4.

### Texas Go Math Grade 5 Lesson 7.3 Homework and Practice Answer Key

**Write an expression to match the words.**

Question 1.

Frank had $25 in his checking account. He withdrew $15 cash and $9 to pay a bill.

Answer:

**$25 – ($15 + $9)**

Explanation:

Frank had $25 in his checking account. He withdrew $15 cash and $9 to pay a bill. The expression that matches the words is $25 – ($15 + $9).

Question 2.

Patricia charges $12 to rake the yard. She charges $5 per hour to bag the piles of leaves for 2 hours.

Answer:

$12 + ($5 x 2)

Explanation:

Patricia charges $12 to rake the yard. She charges $5 per hour to bag the piles of leaves for 2 hours. The expression that matches the words is $12 + ($5 x 2).

**Write words to match the expressions.**

Question 3.

(5 × 2) × (3 × 15)

Answer:

Each person in the five couples are holding three sets of fifteen pens each. These words matches the expression (5 × 2) × (3 × 15).

Question 4.

36 + (2 × 3)

Answer:

Rohan has 36 coins with him. His two brothers gave extra three coins each. These words matches the expression 36 + (2 × 3).

Question 5.

(5 + 10) ÷ 5

Answer:

Raj decided to distribute five chocolates and ten fruits to his five best friends equally. These words matches the expression (5 + 10) ÷ 5.

Question 6.

(12 × 2) + (4 × 3)

Answer:

In Joe’s apartment, surprisingly twelve couples have twins and four couples have triplets. These words matches the expression (12 × 2) + (4 × 3).

**Problem Solving**

Question 7.

Dominick makes a design with 5 rows of 6 tiles. He frames the same design in 7 different frames to sell at the craft fair. Write an expression to match the words. How many tiles does Dominick use?

Answer:

Question 8.

Tim buys three 6-packs of apple juice boxes and five 4-packs of cranberry juice boxes for his party. Write an expression to match the words. How many boxes of juice does Tim buy?

Answer:

The expression that matches the words is (3 x 6) + (5 x 4).

(3 x 6) + (5 x 4)

18 + 20

38

Tim buys 38 boxes of juice.

Explanation:

Tim buys three 6-packs of apple juice boxes and five 4-packs of cranberry juice boxes for his party. The expression that matches the words is (3 x 6) + (5 x 4). Tim buys 38 boxes of juice.

**Lesson Check**

**Fill in the bubble completely to show your answer.**

Use the price list for 9-11.

Question 9.

Which expression shows the cost of one adult admission ticket and 9 thrill ride tickets?

(A) $15 + (9 × $3)

(B) $12 + (9 × $3)

(C) $15 + (9 + $3)

(D) ($15 × 9) + $3

Answer:

So, option A is correct.

Explanation:

The above table is ultimate amusement park. In that we can observe ticket and price. The cost of one adult admission ticket is $15. For each person the thrill ride ticket is $3. Multiply 9 with $3. The expression is $15 + (9 × $3) shows the cost of one adult admission ticket and 9 thrill ride tickets.

Question 10.

Bandar and Courtney each paid $ 12 for admission. They bought 14 thrill ride tickets. Which expression shows their cost?

(A) $12 + (14 × $3)

(B) (2 × $12) + (14 × $3)

(C) (2 × $12) + 14

(D) $12 + (14 + $3)

Answer:

Option B is correct.

Explanation:

Bandar and Courtney each paid $12 for admission. They bought 14 thrill ride tickets. For each person the thrill ride ticket is $3as we can observe in the above table. The expression (2 × $12) + (14 × $3) shows their cost.

Question 11.

Riley bought a child admission ticket and 6 fun land ride tickets. He used a coupon for a $5 discount. Which expression shows Riley’s total cost?

(A) $12 + (6 × $2)

(B) $12 + ($6 + $2) – $5

(C) $12 + (6 × $2) – $5

(D) $12 + (6 × $2) + $5

Answer:

Riley’s total cost is $12 + (6 × $2) – $5.

So, option C is correct.

Explanation:

Riley bought a child admission ticket and 6 fun land ride tickets. The cost of child admission ticket is $12 and each person the thrill ride ticket is $3 as we can observe in the above table. He used a coupon for a $5 discount. The expression $12 + (6 × $2) – $5 shows the Riley’s total cost.

Question 12.

**Multi-Step** The classroom has 12 chairs on the right side of the room, 15 chairs on the left, and 9 chairs stacked in the back. Mrs. Kim wants to divide the chairs evenly into 3 groups. Which expression represents the situation?

(A) 12 + 15 + 9 × 3

(B) 12 + 15 + (9 ÷ 3)

(C) 12 + 15 + 9 + 3

(D) (12 + 15 + 9) ÷ 3

Answer:

The expression is (12 + 15 + 9) ÷ 3.

So, option D is correct.

Explanation:

The classroom has 12 chairs on the right side of the room, 15 chairs on the left, and 9 chairs stacked in the back. Mrs. Kim divides the chairs evenly into 3 groups. The expression represents the situation is (12 + 15 + 9) ÷ 3.

Question 13.

**Multi-Step** Mr. Richardson is driving to a town 85 miles away. He drives 35 miles per hour for 2 hours before stopping for lunch. He drives 6 more miles and stops for gas. Which expression shows how many miles Mr. Richardson has left to drive?

(A) 85 – (35 × 2) – 6

(B) 85 – 35 – 2 -6

(C) (85 – 35) × 2 – 6

(D) 85 – 35 + 2 -6

Answer:

The expression shows the miles of Mr. Richardson has left to drive 85 – (35 × 2) – 6.

So, option A is correct.

Explanation:

Mr. Richardson is driving to a town 85 miles away. He drives 35 miles per hour for 2 hours before stopping for lunch. He drives 6 more miles and stops for gas. The expression shows the miles of Mr. Richardson has left to drive 85 – (35 × 2) – 6. So, option A is correct.