Download Chapter 4 Review Math Write a numerical expression for the following

Chapter 4
Review
Math
Write a numerical expression
for the following:
Don practiced soccer for
3 hours on Friday and for
4 hours on Saturday
Write a numerical expression
for the following:
Don practiced soccer for
3 hours on Friday and for
4 hours on Saturday
3 + 4
Write an algebraic expression
for the following.
Tell what the variable represents.
Ben has 12 pencils. He lost 3
and bought some more.
Write an algebraic expression
for the following.
Tell what the variable represents.
Ben has 12 pencils. He lost 3
and bought some more.
12 – 3 + p
(p = pencils that Ben bought)
Write an algebraic equation for
the following and evaluate.
Tell what the variable represents.
Sam had fish in his fish tank. 6 of
them died. There were 12 left
swimming in the tank.
How many fish did Sam have
originally?
Sam had fish in his fish tank. 6 of them
died. There were 12 left swimming in
the tank.
How many fish did Sam have originally?
f – 6 = 12
f = 18
f is the number of fish Sam had
originally in his tank.
Write each algebraic expression in words
s - 47
Write each algebraic expression in
words
s - 47
47 less than some number
Evaluate the following
algebraic expressions for the
given value of the variable:
(a = 5)
(a + 32) – 3
4 + (20 ÷ a)
Evaluate the following
algebraic expressions for the
given value of the variable:
(a = 5)
(a + 32) – 3
(5 + 32) – 3
37 – 3
34
4 + (20 ÷ a)
4 + (20 ÷ 5)
4 + 4
8
Evaluate the following
algebraic expressions for the
given value of the variable:
(n = 11)
(n + 25)
9
Evaluate the following
algebraic expressions for the
given value of the variable:
(n = 11)
(n + 25)
9
4
Evaluate the following
expression:
²
(8
² ²
+ 4 )
²
÷ (4 x 5 )
²
(8
² ²
+ 4 )
²
÷ (4 x 5 )
(64 + 16) ² ÷ (4 x 25)
80 ²
÷
100
6,400
÷
100
64
Evaluate the following algebraic
equations. Check your work.
Show your work.
30 = 5y
8 = x ÷ 9
t - 12 = 23
¼n = 7
18 = 3 + s
y ÷ 6 = 7
Evaluate the following algebraic
equations.
Show your work.
30 = 5y
8 = x ÷ 9
t - 12 = 23
6
72
35
¼n = 7
28
18 = 3 + s
y ÷ 6 = 7
15
42
Name the properties shown:
1. 327 (65 + 32) = (327 x 65) + (327 x 32)
2. 96 + 127 = 127 + 96
3. (32 x 2) x 40 = 32 x (2 x 40)
4.
0 + 1,325,985,123
5.
18,000 x 1
Name the properties shown:
1. Distributive
2. Commutative
3. Associative
4.
5.
Identity of Addition
Identity of Multiplication
Find the value of y.
Identify the property used
to find its value:
1. 41 + (18 + 9) = (41 + y) + 9
2. 67 x 34 = y x 67
3. 4 x (7 + y) = (4 x 7) + (4 x 9)
4.
5.
y = 0 + 325
y x 1 = 1,500
1. 41 + (18 + 9) = (41 + y) + 9
y = 18
Associative Property
2. 67 x 34 = y x 67
y = 34
Commutative Property
3. 4 x (7 + y) = (4 x 7) + (4 x 9)
y=9
Distributive Property
4.
y = 325
y = 1,500
y = 0 + 325
Identity Property of Addition
5.
y x 1 = 1,500
Identity Property of Multiplication
Use the properties and mental math
to solve the following:
1. (36 + 42) + 24 =
2. 5 x 23 =
3. 39 + 18 + 32 =
Use the properties and mental math
to solve the following:
1. (36 + 42) + 24 =
Commutative (36 + 24) + 42 = 102
2. 5 x 23 =
Distributive (5 x 20) + (5 x 3) =
100 + 15 = 115
3. 39 + 18 + 32 =
Associative 39 + (18 + 32) = 89
Which of the following
numbers 8, 9 and 10
are solutions for the inequalities:
1. p + 4 > 12
2. x – 5 < 6
3. r + 7 ≥ 15
Which of the following
numbers 8, 9 and 10
are solutions for the inequalities:
1. p + 4 > 12
2. x – 5 < 4
3. r + 7 ≥ 15
9, 10
8
8, 9, 10
What is the rule?
Write an equation to represent
the function.
Complete the table.
Input, x
4
Output, y
20
8
12
60
16
What is the rule?
Write an equation to represent
the function.
Complete the table.
Input, x
4
8
12
16
Output, y
20
40
60
80
Rule: x 5
Equation: 5x = y
For word problem practice,
see Text pgs. 116 – 119.