grade 7 Review

grade 7 Review

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write each expression using exponent , 11.11.11.11

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Write expression using exponent (-14)(-14)(-14)

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The longhorn beetle can have a body length of more than 2⁴ centimeters . how many centimeters long is this ?

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Evaluate the expression if

a = 3, b = -4 , c = 3.5

1) a³+ 2

2) 4c - 7 + b³

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Write the expression using positive exponent

a) 6^-2

b) x^-5

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Write each expression using negative exponent other than -1

 $\frac{1}{2^6}^{ }$  

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Write each expression using negative exponent other than -1

 $\frac{1}{36}$  

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Evaluate each expression

if x = -4 , y = 2

a) y^-7

b) 3^x

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Find each product . Express using positive exponent.

a) 5⁶.5²

b) 4^-5.4⁶

c) 10y.(4y)^-7

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Find each quotient . express using positive exponent.

 $\frac{5^{10}}{5^2}$  


 $\frac{8^{-7}}{8^4}$  

 $\frac{r^{20}}{r^6}$  

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Express each number in standard form

a) 4.16 x 10³

b) 3.2 x 10^-2

c) 1.075 x 10⁵

^{Express each number in scientific notation}

^{a) 1600,000}

^{b) 0.008}

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Estimate the value using scientific notation

3612500 cm

order 3.4x10², 3.5x10² , 3.7x10^-2, and 400 from least to greatest

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Evaluate each expression. express the result in scientific notation.

a) (4.62x10⁵)(8.15x10⁹)

b) (7.53x10^-8)(2.93x10^-3)

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 Evaluate expression. Express the result in scientific notation.

 $\frac{8.25\times10^{10}}{2.75\ \times10^4}$  



 $\frac{9.02\times10^3}{4.1\times10^5}$  

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Evaluate each expression. express the result in scientific notation

a) (1.217x10⁵) - (5.25x10⁴)

b) (2.003x10⁴) + (7.98 x 10⁷)