
B2 - Cálculo do valor numérico de expressões algébricas
Presentation
•
Mathematics
•
•
Practice Problem
•
Medium
BRENDA MENDES
Used 3+ times
FREE Resource
5 Slides • 5 Questions
1
CÁLCULO DO VALOR NUMÉRICO DE UMA EXPRESSÃO ALGÉBRICA
2
3
O valor de uma expressão algébrica é o valor que ela assume quando substituímos cada letra (parte literal) pelo número correspondente e efetuamos as operações indicadas.
4
Exemplos:
O valor numérico da expressão algébrica 5 . x, para x = 3
5 . x = 5 . 3 = 15
O valor numérico da expressão algébrica x² + y, para x = 5 e y = 10
x² + y = 5² + 10 = 25 + 10 = 35
O valor numérico da expressão algébrica y² - 2, para y = -1
y² - 2 = (-1)² - 2 = 1 - 2 = -1
5
Multiple Choice
Calcule o valor numérico da expressão 3x + 5 quando x = 2.
6
8
10
11
6
Multiple Choice
Interprete a expressão 5x - 7 e determine seu valor numérico quando x = 3.
7
8
10
15
7
Multiple Choice
Seja a expressão 2x + y. Qual é o valor numérico quando x = 3 e y = 4?
10
12
14
16
8
Multiple Choice
Calcule o valor numérico da expressão x² + 2x - 1 quando x = 5.
24
29
30
34
9
Multiple Choice
Qual é o valor numérico da expressão 4x - 3y quando x = 6 e y = 2?
18
20
21
22
10
CÁLCULO DO VALOR NUMÉRICO DE UMA EXPRESSÃO ALGÉBRICA
Show answer
Auto Play
Slide 1 / 10
SLIDE
Similar Resources on Wayground
9 questions
Scatter Plots and Lines of Trend
Presentation
•
8th - 9th Grade
10 questions
Solving Systems by Substitution
Presentation
•
8th - 12th Grade
10 questions
Writing Equations
Presentation
•
6th Grade
10 questions
Algebraic Expressions
Presentation
•
6th Grade
7 questions
double digit by double digit multiplication
Presentation
•
4th Grade
8 questions
Area and Perimeter
Presentation
•
3rd - 4th Grade
9 questions
4.2c - Finding slope from a table
Presentation
•
8th Grade
9 questions
Customary Units of Length
Presentation
•
4th Grade
Popular Resources on Wayground
10 questions
How much do you know about our Portrait of an Eagle?
Quiz
•
10th Grade
10 questions
Fast Food Slogans
Quiz
•
6th - 8th Grade
21 questions
Continents and Oceans
Quiz
•
6th Grade
20 questions
Parts of Speech
Quiz
•
5th Grade
16 questions
Subject & Predicate
Quiz
•
5th Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
12 questions
Map Skills
Quiz
•
3rd Grade
22 questions
Continents and Oceans
Quiz
•
5th Grade
Discover more resources for Mathematics
20 questions
Place Value
Quiz
•
KG - 3rd Grade
10 questions
Identifying equations
Quiz
•
KG - University
8 questions
1.4 Inductive Reasoning, Conjectures & Counterexamples
Quiz
•
KG
24 questions
Parallel Lines Cut By A Transversal
Quiz
•
KG - University
10 questions
2-digit subtraction without regrouping
Quiz
•
KG - 2nd Grade
15 questions
Simple Patterns AB, ABB, ABC
Quiz
•
KG - 1st Grade
10 questions
Commutative Property of Addition
Quiz
•
KG - 3rd Grade
10 questions
Rounding to the nearest ten
Quiz
•
KG - 1st Grade