Finding the Absolute Value of Numbers | Helping with Math - Free Printable
Educational worksheet: Finding the Absolute Value of Numbers | Helping with Math. Download and print for classroom or home learning activities.
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Show Answer Key & Explanations
Step-by-step solution for: Finding the Absolute Value of Numbers | Helping with Math
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Show Answer Key & Explanations
Step-by-step solution for: Finding the Absolute Value of Numbers | Helping with Math
Let's solve each expression by substituting the given value of the variable and calculating the result. I'll go through each one step by step.
---
Given: $ a = 5 $
$ 2a = 2 \times 5 = 10 $
✔ Value: 10
---
Given: $ b = 12 $
$ 12 + 7 = 19 $
✔ Value: 19
---
Given: $ c = 21 $
$ 21 - 5 = 16 $
✔ Value: 16
---
Given: $ d = 24 $
$ 24 ÷ 3 = 8 $
✔ Value: 8
---
Given: $ e = 19 $
$ 19 + 12 = 31 $
✔ Value: 31
---
Given: $ f = 100 $
$ 100 - 15 = 85 $
✔ Value: 85
---
Given: $ g = 8 $
$ 7 \times 8 = 56 $
✔ Value: 56
---
Given: $ h = 56 $
$ \frac{1}{2} \times 56 = 28 $
✔ Value: 28
---
Given: $ i = 20 $
$ 20 ÷ 5 = 4 $
✔ Value: 4
---
Given: $ j = 18 $
$ 20 - 18 = 2 $
✔ Value: 2
---
Given: $ k = 6 $
$ 30 ÷ 6 = 5 $
✔ Value: 5
---
Given: $ l = 50 $
$ 50 ÷ 2 = 25 $
✔ Value: 25
---
Given: $ m = 34 $
$ 10 \times 34 = 340 $
✔ Value: 340
---
Given: $ n = 72 $
$ 72 - 25 = 47 $
✔ Value: 47
---
Given: $ o = 32 $
$ \frac{1}{4} \times 32 = 8 $
✔ Value: 8
---
Given: $ p = 0.5 $
$ 4 - 0.5 = 3.5 $
✔ Value: 3.5
---
Given: $ q = 2.7 $
$ 1.5 + 2.7 = 4.2 $
✔ Value: 4.2
---
Given: $ r = 0.7 $
$ 3 \times 0.7 = 2.1 $
✔ Value: 2.1
---
Given: $ s = 3 $
$ 3 - 0.7 = 2.3 $
✔ Value: 2.3
---
Given: $ t = 7 $
$ \frac{1}{2} \times 7 = 3.5 $
✔ Value: 3.5
---
| EXPRESSION | WHEN | VALUE |
|------------|-------------|-----------|
| Example | x = 7 | 15 – 7 = 8 |
| 1) | a = 5 | 10 |
| 2) | b = 12 | 19 |
| 3) | c = 21 | 16 |
| 4) | d = 24 | 8 |
| 5) | e = 19 | 31 |
| 6) | f = 100 | 85 |
| 7) | g = 8 | 56 |
| 8) | h = 56 | 28 |
| 9) | i = 20 | 4 |
| 10) | j = 18 | 2 |
| 11) | k = 6 | 5 |
| 12) | l = 50 | 25 |
| 13) | m = 34 | 340 |
| 14) | n = 72 | 47 |
| 15) | o = 32 | 8 |
| 16) | p = 0.5 | 3.5 |
| 17) | q = 2.7 | 4.2 |
| 18) | r = 0.7 | 2.1 |
| 19) | s = 3 | 2.3 |
| 20) | t = 7 | 3.5 |
---
This worksheet is designed to practice evaluating algebraic expressions by substituting a given value for a variable and simplifying. The key steps are:
1. Identify the expression.
2. Plug in the given value of the variable.
3. Perform the arithmetic operation(s).
These problems involve basic operations: addition, subtraction, multiplication, division, and fractions (like ½ or ¼). They also include decimals, so careful attention to decimal places is needed.
Let me know if you'd like this as a printable PDF or need help with similar problems!
---
1) 2a
Given: $ a = 5 $
$ 2a = 2 \times 5 = 10 $
✔ Value: 10
---
2) b + 7
Given: $ b = 12 $
$ 12 + 7 = 19 $
✔ Value: 19
---
3) c - 5
Given: $ c = 21 $
$ 21 - 5 = 16 $
✔ Value: 16
---
4) d ÷ 3
Given: $ d = 24 $
$ 24 ÷ 3 = 8 $
✔ Value: 8
---
5) e + 12
Given: $ e = 19 $
$ 19 + 12 = 31 $
✔ Value: 31
---
6) f - 15
Given: $ f = 100 $
$ 100 - 15 = 85 $
✔ Value: 85
---
7) 7g
Given: $ g = 8 $
$ 7 \times 8 = 56 $
✔ Value: 56
---
8) ½ h
Given: $ h = 56 $
$ \frac{1}{2} \times 56 = 28 $
✔ Value: 28
---
9) i ÷ 5
Given: $ i = 20 $
$ 20 ÷ 5 = 4 $
✔ Value: 4
---
10) 20 - j
Given: $ j = 18 $
$ 20 - 18 = 2 $
✔ Value: 2
---
11) 30 ÷ k
Given: $ k = 6 $
$ 30 ÷ 6 = 5 $
✔ Value: 5
---
12) l / 2
Given: $ l = 50 $
$ 50 ÷ 2 = 25 $
✔ Value: 25
---
13) 10m
Given: $ m = 34 $
$ 10 \times 34 = 340 $
✔ Value: 340
---
14) n - 25
Given: $ n = 72 $
$ 72 - 25 = 47 $
✔ Value: 47
---
15) ¼ o
Given: $ o = 32 $
$ \frac{1}{4} \times 32 = 8 $
✔ Value: 8
---
16) 4 - p
Given: $ p = 0.5 $
$ 4 - 0.5 = 3.5 $
✔ Value: 3.5
---
17) 1.5 + q
Given: $ q = 2.7 $
$ 1.5 + 2.7 = 4.2 $
✔ Value: 4.2
---
18) 3r
Given: $ r = 0.7 $
$ 3 \times 0.7 = 2.1 $
✔ Value: 2.1
---
19) s - 0.7
Given: $ s = 3 $
$ 3 - 0.7 = 2.3 $
✔ Value: 2.3
---
20) ½ t
Given: $ t = 7 $
$ \frac{1}{2} \times 7 = 3.5 $
✔ Value: 3.5
---
✔ Final Answer Table:
| EXPRESSION | WHEN | VALUE |
|------------|-------------|-----------|
| Example | x = 7 | 15 – 7 = 8 |
| 1) | a = 5 | 10 |
| 2) | b = 12 | 19 |
| 3) | c = 21 | 16 |
| 4) | d = 24 | 8 |
| 5) | e = 19 | 31 |
| 6) | f = 100 | 85 |
| 7) | g = 8 | 56 |
| 8) | h = 56 | 28 |
| 9) | i = 20 | 4 |
| 10) | j = 18 | 2 |
| 11) | k = 6 | 5 |
| 12) | l = 50 | 25 |
| 13) | m = 34 | 340 |
| 14) | n = 72 | 47 |
| 15) | o = 32 | 8 |
| 16) | p = 0.5 | 3.5 |
| 17) | q = 2.7 | 4.2 |
| 18) | r = 0.7 | 2.1 |
| 19) | s = 3 | 2.3 |
| 20) | t = 7 | 3.5 |
---
🔍 Explanation:
This worksheet is designed to practice evaluating algebraic expressions by substituting a given value for a variable and simplifying. The key steps are:
1. Identify the expression.
2. Plug in the given value of the variable.
3. Perform the arithmetic operation(s).
These problems involve basic operations: addition, subtraction, multiplication, division, and fractions (like ½ or ¼). They also include decimals, so careful attention to decimal places is needed.
Let me know if you'd like this as a printable PDF or need help with similar problems!
Parent Tip: Review the logic above to help your child master the concept of value of x worksheet.
