The image shows the cover of a math workbook titled
"180 Days of Math for Fifth Grade" by Shell Education. While the book cover includes mathematical expressions like:
- \( 2x + (7 - 1) \)
- \( 0.63 \times 0.7 \)
These are likely examples of the types of problems students will encounter in the book, but
there is no specific problem to solve on the cover itself — it's just promotional imagery.
However, let’s go ahead and
solve the two expressions shown as an example of what might be expected in the book:
---
1. Simplify: \( 2x + (7 - 1) \)
First, simplify inside the parentheses:
\[
7 - 1 = 6
\]
So the expression becomes:
\[
2x + 6
\]
✔ Answer: \( 2x + 6 \)
(This is simplified; you can't combine \(2x\) and 6 unless you know the value of \(x\).)
---
2. Multiply: \( 0.63 \times 0.7 \)
Step-by-step:
1. Remove decimals and multiply as whole numbers:
\[
63 \times 7 = 441
\]
2. Count total decimal places:
- 0.63 has 2 decimal places
- 0.7 has 1 decimal place
- Total = 3 decimal places
3. Place the decimal point in the result:
\[
0.441
\]
✔ Answer: \( 0.441 \)
---
Summary:
- \( 2x + (7 - 1) = 2x + 6 \)
- \( 0.63 \times 0.7 = 0.441 \)
These are typical fifth-grade math problems involving algebraic expressions and decimal multiplication.
Let me know if you'd like help with a specific problem from the book!
Parent Tip: Review the logic above to help your child master the concept of 5th grade math books.
