Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (2024)

Solve the questions in Math Expressions Grade 5 Homework and Remembering Answer Key Unit 3 Lesson 8 Answer Key Solve Real-World Problems to attempt the exam with higher confidence. https://mathexpressionsanswerkey.com/math-expressions-grade-5-unit-3-lesson-8-answer-key/

Math Expressions Common Core Grade 5 Unit 3 Lesson 8 Answer Key Solve Real World Problems

Math Expressions Grade 5 Unit 3 Lesson 8 Homework

Complete each fraction box.

Unit 3 Lesson 8 Solve Real World Problems Math Expressions Question 1.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (1)

Answer:
0.875 + 0.75 = 1.625.
0.875 . 0.75 = 0.656.
0.875 – 0.75 = 0.125.

Explanation:
In the above-given question,
given that,
the fractions are 7/8 and 3/4.
add, multiply, subtract the fractions.
7/8 + 3/4.
7/8 = 0.875.
3/4 = 0.75.
0.875 + 0.75 = 1.625.
0.875 . 0.75 = 0.656.
0.875 – 0.75 = 0.125.

Unit 3 Lesson 8 Answer Key Math Expressions Solve Real-World Problems Question 2.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (2)

Answer:
3/5 > 1/2.
0.5 + 0.6 = 1.1.
0.5 . 0.6 = 0.3.
0.5 – 0.6 = 0.1.

Explanation:
In the above-given question,
given that,
the fractions are 1/2 and 3/5.
add, multiply, subtract the fractions.
1/2 + 3/5.
1/2 = 0.5.
3/5 = 0.6.
3/5 > 1/2.
0.5 + 0.6 = 1.1.
0.5 . 0.6 = 0.3.
0.5 – 0.6 = 0.1.

Solve. Show your Work.

Unit 3 Lesson 8 Math Expressions Solve Real-World Problems Question 3.
The Eagle Trucking Company must deliver \(\frac{7}{8}\) ton of cement blocks and \(\frac{5}{8}\) ton of bricks to one place. How much will this load weigh?

Answer:
The weight of the load = 1.5 tons.

Explanation:
In the above-given question,
given that,
The Eagle Trucking Company must deliver \(\frac{7}{8}\) ton of cement blocks and \(\frac{5}{8}\) ton of bricks to one place.
7/8 + 5/8.
7/8 = 0.875.
5/8 = 0.625.
0.875 + 0.625 = 1.5.
so the weight of the load = 1.5 ton.

Lesson 8 Answer Key Math Expressions Solve Real-World Problems Question 4.
A truck carried 3\(\frac{1}{3}\) tons of sand, but lost \(\frac{1}{4}\) ton along the way. How many tons of sand were delivered?

Answer:
The number of tons of sand that were delivered = 3.05.

Explanation:
In the above-given question,
given that,
A truck carried 3\(\frac{1}{3}\) tons of sand, but lost \(\frac{1}{4}\) ton along the way.
3(1/3) – 1/4.
10/3 – 1/4.
3.3 – 0.25.
3.05.
so the number of tons of sand was delivered = 3.05.

Question 5.
The trucking company also needs to deliver 1\(\frac{2}{3}\) tons of oak logs and 1\(\frac{7}{12}\) tons of maple logs. Which load weighs more?

Answer:
The weight of maple logs is more.

Explanation:
In the above-given question,
given that,
The trucking company also needs to deliver 1\(\frac{2}{3}\) tons of oak logs and 1\(\frac{7}{12}\) tons of maple logs.
1(2/3) and 1(7/2).
5/3 = 1.6.
9/2 = 4.5.
so the weight of maple logs is more.

Question 6.
In a load of \(\frac{3}{4}\) ton of steel rods, \(\frac{1}{8}\) of them are bent. How many tons of steel rods are bent?

Answer:
The number of tons of steel rods is bent = 0.625.

Explanation:
In the above-given question,
given that,
In a load of \(\frac{3}{4}\) ton of steel rods, \(\frac{1}{8}\) of them are bent.
3/4 and 1/8.
3/4 = 0.75.
1/8 = 0.125.
0.75 – 0.125 = 0.625.
so the number of tons of steel rods is bent = 0.625.

Question 7.
The company delivered 1\(\frac{3}{5}\) tons of bricks to one building site. They delivered 2\(\frac{1}{2}\) times this much to a second site. What was the weight of the load the company delivered to the second site?

Answer:
The weight of the load the company delivered to the second site = 0.9 tons.

Explanation:
In the above-given question,
given that,
The company delivered 1\(\frac{3}{5}\) tons of bricks to one building site.
They delivered 2\(\frac{1}{2}\) times this much to a second site.
1(3/5) and 2(1/2).
8/5 – 5/2.
8/5 = 1.6.
5/2 = 2.5.
2.5 – 1.6 = 0.9.
so the weight of the load the company delivered to the second site = 0.9 tons.

Math Expressions Grade 5 Unit 3 Lesson 8 Remembering

Multiply.

Question 1.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (3)

Answer:
2,548 x 5 = 12,740.

Explanation:
In the above-given question,
given that,
the numbers are 2548 and 5.
multiply the numbers.
2548 x 5.
12,740.

Question 2.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (4)

Answer:
21 x 45 = 945.

Explanation:
In the above-given question,
given that,
the numbers are 21 and 45.
multiply the numbers.
21 x 45.
945.

Question 3.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (5)

Answer:
3015 x 6 = 18,090.

Explanation:
In the above-given question,
given that,
the numbers are 3015 and 6.
multiply the numbers.
3015 x 6.
18,090.

Question 4.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (6)
Answer:
33 x 4 = 132.

Explanation:
In the above-given question,
given that,
the numbers are 33 and 4.
multiply the numbers.
33 x 4.
132.

Question 5.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (7)
Answer:
65 x 87 = 5655.

Explanation:
In the above-given question,
given that,
the numbers are 65 and 87.
multiply the numbers.
65 x 87.
5655.

Question 6.
Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (8)
Answer:
215 x 9 = 1935.

Explanation:
In the above-given question,
given that,
the numbers are 215 and 9.
multiply the numbers.
215 x 9.
1935.

Find each product by first rewriting each mixed number as a fraction.

Question 7.
4\(\frac{4}{9}\) . 2\(\frac{2}{3}\) = ___

Answer:
4(4/9) . 2(2/3) = 11.44.

Explanation:
In the above-given question,
given that,
the fractions are 4(4/9) and 2(2/3).
4(4/9) = 40/9.
2(2/3) = 8/3.
40/9 = 4.4.
8/3 = 2.6.
4.4 x 2.6 = 11.44.

Question 8.
6\(\frac{1}{5}\) . 10 = ___

Answer:
6(1/5) . 10 = 62.

Explanation:
In the above-given question,
given that,
the fractions are 6(1/5) and 10.
6(1/5) = 31/5.
31/5 = 6.2.
6.2 x 10 = 62.

Question 9.
3\(\frac{5}{6}\) . \(\frac{12}{13}\) = ___

Answer:
6(1/5) . 10 = 62.

Explanation:
In the above-given question,
given that,
the fractions are 6(1/5) and 10.
6(1/5) = 31/5.
31/5 = 6.2.
6.2 x 10 = 62.

Question 10.
5\(\frac{1}{3}\) . \(\frac{3}{5}\) = ___

Answer:
5(1/3) . 3/5 = 3.18.

Explanation:
In the above-given question,
given that,
the fractions are 5(1/3) and 3/5.
5(1/3) = 16/3.
16/3 = 5.3.
3/5 = 0.6.
5.3 x 0.6 = 3.18.

Solve.

Question 11.
\(\frac{6}{7}\) – \(\frac{2}{7}\)

Answer:
6/7 – 2/7 = 0.65.

Explanation:
In the above-given question,
given that,
the fractions are 6/7 and 2/7.
subtract the fractions.
6/7 = 0.85.
2/7 = 0.2.
0.85 – 0.2 = 0.65.

Question 12.
\(\frac{4}{9}\) + \(\frac{2}{3}\)

Answer:
4/9 + 2/3 = 0.2.

Explanation:
In the above-given question,
given that,
the fractions are 4/9 and 2/3.
add the fractions.
4/9 = 0.4.
2/3 = 0.6.
0.4 – 0.6 = 0.2.

Question 13.
\(\frac{2}{3}\) . \(\frac{9}{10}\)

Answer:
2/3 . 9/10 = 0.3.

Explanation:
In the above-given question,
given that,
the fractions are 2/3 and 9/10.
multiply the fractions.
2/3 = 0.6.
9/10 = 0.9.
0.9 – 0.6 = 0.3.

Question 14.
\(\frac{3}{5}\) . \(\frac{5}{8}\)

Answer:
3/5 . 5/8 = 0.375.

Explanation:
In the above-given question,
given that,
the fractions are 3/5 and 5/8.
3/5 = 0.6.
5/8 = 0.625.
0.6 . 0.625 = 0.375.

Question 15.
8 – \(\frac{1}{7}\)

Answer:
8 – 1/7 = 7.86.

Explanation:
In the above-given question,
given that,
the fractions are 8 and 1/7.
subtract the fractions.
1/7 = 0.14.
8 – 0.14 = 7.86.

Question 16.
\(\frac{1}{6}\) + \(\frac{3}{8}\)

Answer:
1/6 + 3/8 = 0.535.

Explanation:
In the above-given question,
given that,
the fractions are 1/6 and 3/8.
1/6 = 0.16.
3/8 = 0.375.
0.16 + 0.375 = 0.535.

Question 17.
Stretch Your Thinking Write and solve a word problem that requires multiplying two mixed numbers.

Answer:
3(2/7) . 4(2/7) = 13.44.

Explanation:
In the above-given question,
given that,
the fractions are 3(2/7) and 4(2/7).
multiply the fractions.
3(2/7) = 23/7.
30/7 = 4.2.
23/7 = 3.2.
4.2 . 3.2 = 13.44.

Math Expressions Grade 5 Unit 3 Lesson 8 Answer Key Solve Real-World Problems – Math Expressions Answer Key (2024)

FAQs

Do expressions in math have answers? ›

No, we cannot solve a math expression as it does not have an 'equal to' sign ( = ) but we can simplify expressions. Mathematical expressions have only numbers and operators, while algebraic expressions have both numbers and variables in terms, separated by operators in between.

What is expression in answer? ›

Expression Definition

An expression or algebraic expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them. For example, 4m + 5 is an expression where 4m and 5 are the terms and m is the variable of the given expression separated by the arithmetic sign +.

How to write an algebraic expression from a real world situation? ›

Figure out which quantity in the situation is unknown and define a variable to represent the unknown quantity. Write an expression using the variable to represent the situation. Look for key words to help you figure out what mathematical operations you should use.

How to write math expressions? ›

A mathematical expression can be as simple as 2 + 4 or as complex as -4xy + 8x- 5(x/y). All mathematical expressions contain terms, and each term has a coefficient, the numerical factor. The terms are separated by plus or minus signs and consist of a product of the coefficient and one or more variables factors.

Is an expression a math problem? ›

An expression is a mathematical phrase that contains numbers, variables, or both. Expressions never have an equal sign. Here are some examples of expressions. An equation is a mathematical sentence that says two expressions are equal.

What is an expression in math definition for kids? ›

An expression in math is a statement involving at least two different numbers (known or unknown) and at least one operation. Operations may include addition, subtraction, multiplication, division, exponents, and roots. Perhaps the most important thing that defines an expression is what it doesn't have.

What are the examples of expression? ›

Types of Expressions
  • Example: 80-5 x 2, 20+5, 85 – 25 …
  • Example: 6/4 – 5/2 , 20/10 +25/2 etc.
  • Example: 3x + 12y , 5x + 5y etc..
  • Examples of monomial expressions include 5x4, 3xy, 2x, 5y, etc.
  • Examples of binomial include 2xy + 8, xyz + x2, etc.
  • Examples of polynomial expression include ax + by + ca, x3 + 5x + 3, etc.
Jan 30, 2024

What are algebraic expressions Grade 5? ›

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables.

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