Operations with real numbers
-4 + (-9)
-13
Simplify:
(-6)3
-216
square root of -25
-5
15 - 2 x 3 + 1
10
Simplify:
24a +b2 + 3a + 2b2
27a + 3b2
-8-(-3) =
-5
(2/9)2
4/81
cube root of -216
-6
12- 32 + 10 / 2
8
Simplify:
-12d+3+14d+18
2d+21
2/3 - 4/9
2/9
(-4/9)2
16/81
square root of 49/9
7/3
2.4 + 4 [32 - 2(3 -1.5)]
26.4
Simplify: 4(x +9) + 5x
9x +36
5/6 divided by (-4/3)
-5/8
The population of a certain bacteria doubles in size every three hours. If a population begins with 1 bacterium, how many will there be after one day?
28 = 256
Classify the number:
negative square root of 14
irrational
72 +42 x 3
97
A rectangular desktop has a length of 3(x+2) units and a width of x-7 units. Write an expression, in simplified form, for the perimeter of the desktop.
8x-2
8/9 divided by (-2 2/3)
-1/3
(-10)4
10000
rational, repeating decimal
[(-6 x 4) / (-6) x 4]2
256
Lucy is k years old. She has a sister who is three years younger than she is and another sister who is five years less than twice Lucy's age. Write an expression, in simplified form, for the sum of the three girls' ages.
4k-8