1.1-1.4
Write 5/12 as a decimal.
0.41666
Solve x²=144.
+12 or -12
Which power of 10 is closest to 83,000?
100,000=10⁵
Find (3×10⁵)(4×10²). Write the answer in scientific notation.
1.2×10⁸
solve 4x+7-2x=19.
x = 6
Multiple choice: Which number is irrational?
A. √64 B. 0.75 C. √19 D. -2/5
C
Simplify r³· r⁵
r⁸
Write 0.000064 in scientific notation.
6.4×10⁻⁵
Find (8.4×10⁷)÷(2.1×10³). Write the answer in scientific notation.
4×10⁴
Solve 5x+3=2x+18.
x = 5
Evaluate √(196) - √[3]27
11
3y³= -81
-3
Write 5.28×10⁶ in standard form.
5,280,000
A small organism is about 6×10⁻⁵ meters long. Write its length in standard decimal form.
0.00006
Solve 4(2x-3)-5=3x+12.
x = 29/5
Write 0.3636... as a fraction
4/11
Simplify m⁶· m⁻²
m⁴
Write 0.000307 in scientific notation.
3.07×10⁻⁴
Find (6.3×10⁸)÷(9×10²). Write your answer in scientific notation.
7×10⁵
Solve 1/2(x+6)=10.
x = 14
Estimate √70
8.4
Simplify 6²/6⁵. Write your answer using positive exponents.
1/216
A library has about 48,000,000 books across its digital collection. Write this as one digit times a power of 10.
4.8×10⁷.
A planet is about 1.5×10⁸ kilometers from its star. A spacecraft has traveled 5×10⁷ kilometers. How many times as far away is the planet as the spacecraft has traveled?
3 times as far
Three times a number increased by 8 is equal to twice the number decreased by 5. Write an equation and solve for the number.
Equation: 3n+8=2n-5
n = -13