Exponents
Solve 23
2 x 2 x 2 = 8
Solve 2 + 102 - 10
92
20 plus the product of e and 9
20 + 9e
or
20 + e x 9
Which expression is equivalent to 4(x + 5)?
A) 4x + 20
B) 4x + 5
C) x + 20
D) (4 + x)(4 + 5)
A) 4x + 20
4 is being multiplied by each number term inside the parentheses.
Solve f + 12 = 125
f = 113
Solve 34
3 x 3 x 3 x 3 = 81
Simplify
8(4 + 7) - 32 x 5
43
Write a phrase that goes with this expression:
2x + 18
2 times a number x increased by 18
Which of the following expressions is equivalent to 3y + 27?
A) y(3 + 27)
B) 3(y + 27)
C) 3(y + 9)
D) 27y + 3
C) 3(y + 9)
Solve g - 17 = 42
g = 59
Solve 63
6 x 6 x 6 = 216
Solve
7 + 15 / 5 x 23
31
Tina goes to the library to check out books each week. If he checks out b number of books each week, which expression can be used to find how many books she checks out in 7 weeks?
A) b + 7
B) b - 7
C) 7b
D) b / 7
C) 7b
Remember that a number next to a variable means multiplication.
Fill in the missing term.
18m + ___ = 6(3m + 9g)
54g
18m + 54g = 6(3m + 9g)
Solve 4d = 52
d = 13
Which is the same as 76?
A) 7 x 6
B) 6 x 6 x 6 x 6 x 6 x 6 x 6
C) 7 x 7 x 7 x 7 x 7 x 7
C) 7 x 7 x 7 x 7 x 7 x 7
210
Bob baked 54 cupcakes and distributed the cupcakes equally to g grandchildren. Which expression represents the number of cupcakes he gave each grandchild?
A) 54 + g
B) 54 - g
C) 54g
D) 54 / g
D) 54 / g
Fill in the blank:
18r + 14x = ___(9r + 7x)
2
18r + 14x = 2(9r + 7x)
Solve r / 9 = 12
r = 108
Simplify 45
A) 20
B) 1,024
C) 45
D) 400,000
B) 1,024
4 x 4 x 4 x 4 x 4 = 1,024
50.2 + (30 - 27.5)2
56.45
Which of the following expressions contains exactly three terms?
A) w + 7xy
B) 4 + 5z - 8xy + 10j
C) 10 + 5x - 8y
D) x + 10y
C) 10 + 5x - 8y
Terms are separated by plus and minus signs.
Write an equivalent expression to:
5(2x + 3y)
10x + 15y
Solve
h + 22.75 = 138.25
h = 115.50