U4L3-4 Scientific Notation: Add & Subtract

Simplify the expression. Write the answer in scientific notation.

 $(1.065×10^{–2})–(1.05×10^{–2})$  

•  $1.5×10^{–4}$  

•  $.015×10^{-2}$  

•  $15×10^{–5}$  

•  $2.115\times10^{-2}$  

Tags

CCSS.8.EE.A.4

 Simplify the expression. Write the answer in scientific notation.

 $(5.4×10^5)+(2.6×10^6)$   

•  $3.14×10^6$  
  

•  $10×10^5$  

•  $1×10^5$  

•  $.314×10^7$  

Tags

CCSS.8.EE.A.4

Simplify the expression. Write the answer in scientific notation.

 $(9.55×10^{–3})+(1.02×10^{–4})$  

•  $1.057\times10^{-3}$  

•  $10.57\times10^{-4}$  

•  $9.652×10^{–3}$  

•  $8.52\times10^{-3}$  

Tags

CCSS.8.EE.A.4

Simplify the expression. Write the answer in scientific notation.

 $(4.5×10^4)–(1.2×10^4)$  

•  $33×10^3$  
  

•  $3.3×10^3$  
  

•  $5.7×10^4$  
  

•  $3.3×10^4$  
  

Tags

CCSS.8.EE.A.4

Simplify the expression. Write the answer in scientific notation.

 $(4.5×10^{–6})–(3.6×10^{–6})$  

•  $8.1\times10^{-6}$  
  

•  $8.1\times10^{-7}$  
  

•  $9×10^{–6}$  
  

• 
  

   $9×10^{–7}$  

Tags

CCSS.8.EE.A.4

Simplify the expression. Write the answer in scientific notation.

 $\left((6.5×10^3)─(4.5×10^2\right)$  

•  $60.5\times10^2$  
  

•  $6.05\times10^3$  
  

•  $0.605\times10^4$  
  

•  $1.1\times10^3$  
  

Tags

CCSS.8.EE.A.4

Simplify the expression. Write the answer in scientific notation.

 $(4.2×10^2)+(1.3×10^2)$  

•  $55\times10^2$  
  

•  $0.55\times10^2$  
  

•  $5.5\times10^2$  
  

•  $3.9\times10^2$  
  

Tags

CCSS.8.EE.A.4

Simplify the expression. Write the answer in scientific notation.

 $(8.1×10^4)+(4.3×10^3)$  

•  $12.4\times10^3$  
  

•  $12.4\times10^7$  
  

•  $8.53\times10^4$  
  

•  $85.3\times10^3$  
  

Tags

CCSS.8.EE.A.4

• 5.91 x 10⁶

• 9.6 x 10⁵

• 9.6 x 10¹¹

• 4.65 x 10⁵

Tags

CCSS.8.EE.A.4

Tags

CCSS.8.EE.A.4