Simplify: 90
1
A calculator shows 3.6E2. Write this in scientific notation.
3.6 x 102
A dust mite egg has a mass of 3,500 milligrams. Write this mass in scientific notation.
3.5 x 103 milligrams
Multiply: (2 x 102)(3 x 101)
6 x 10^3
Evaluate:
sqrt(81)
9
Write 3-2 as a fraction in simplest form.
1/9
Which is written correctly in scientific notation:
42 x 102
4.2 x 103
0.42 x 104
420 x 101
4.2 x 103
Order from least to greatest:
squareroot of 9
2.7
squareroot of 16
3.5
2.7, sqrt(9), 3.5, sqrt(16)
Divide: (8 x 104) / (2 x 102)
4 x 102
Evaluate:
sqrt(196)
14
Simplify: (x5)3
x15
Simplify: (25 x 28) / 24
29
A ladybug egg has a mass of 2,800 milligrams. Write this mass in scientific notation.
2.8 x 103 milligrams
Divide: (7.5 x 107 g) / (5 x 103 containers). Give the mass per container.
1.5 x 104 grams
Between which two whole numbers does sqrt(50) fall?
Between 7 and 8
Write 5-4 as a fraction in simplest form.
1/625
A calculator shows 7.14E-5. Write this in scientific notation.
7.14x10-5
Order from least to greatest:
sqrt(36)
5.8
sqrt(40)
6.5
5.8, sqrt(36), sqrt(40), 6.5
Multiply: (5.0 x 104)(1.8 x 103)
9.0 x 107
A pond is
sqrt(300)
meters deep. Between which two whole numbers does that depth fall?
Between 17 and 18 meters
Simplify: (x12)6
x72
Simplify: (36 x 39) / 37
38
Measurement A is 9.1 x 10-6 meters. Measurement B is 2.3 x 106 meters. Write Measurement A in standard form, and name which measurement is larger.
0.0000091 meters; Measurement B is larger
Evaluate:
[(9 x 10^5)(2 x 10^-3)] / (3 x 10^1)
6 x 101 (60)
Is 0.222... rational or irrational, and why?
Rational — it repeats and equals the fraction 2/9