addition and subtraction with scientific notation

Which is the largest?
4.8 x 10^-6 
1.3 x 10²⁰
3.1 x 10^-4
9.2 x 10^-5 
9.5 x 10³²
5.9 x 10^-5
2.9 x 10²¹
8.4 x 10¹⁹

• 9.5 x 10³²
• 3.1 x 10^-4
• 8.4 x 10¹⁹
• 4.8 x 10^-6 

Tags

CCSS.8.EE.A.3

Which is the smallest?
1.3 x 10²⁰
2.9 x 10²¹
9.5 x 10³²
8.4 x 10¹⁹

• 1.3 x 10²⁰
• 2.9 x 10²¹
• 9.5 x 10³²
• 8.4 x 10¹⁹

Tags

CCSS.6.EE.A.1

CCSS.6.NS.C.7

Write the answer in scientific notation.
5 x 10⁸ -   3.4 x 10⁸  =

• 2.4 x 10⁸
• 2.4 x 10⁰
• 1.6 x 10⁰
• 1.6 x 10⁸

Tags

CCSS.8.EE.A.4

Write the answer in scientific notation.
4.1 x 10⁶ +   5.5 x 10⁶  =

• 5.91 x 10⁶
• 9.6 x 10⁶
• 9.6 x 10¹¹
• 4.65 x 10⁵

Tags

CCSS.8.EE.A.4

(2.3 x 10²)+(4.1 x 10²)=

• 6.4 x 10⁴
• 6.4 x 10²
• 6.4 x 10⁰
• .64 x 10¹

Tags

CCSS.8.EE.A.4

(7.7 x 10²) + (3.1 x 10²)=

• 8.8 x 10⁴
• 10.8 x 10²
• 1.08 x 10³
• 6.6 x 10²

Tags

CCSS.8.EE.A.4

(2.9 x 10^-9) - (1.7 x 10^-9)

• 1.2 x 10^-18
• 1.2 x 10^-9
• 4.6 x 10^-9
• 1.335 x 10^-4

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.NS.B.3

Write the answer in scientific notation.
5 x 10⁸ -   3.4 x 10⁸  =

• 2.4 x 10⁸
• 2.4 x 10⁰
• 1.6 x 10⁰
• 1.6 x 10⁸

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.NS.B.3

Write the answer in scientific notation.
9.9 x 10⁸ -   3.4 x 10⁸  =

• 2.4 x 10⁸
• 2.4 x 10⁰
• 1.6 x 10⁰
• 6.5 x 10⁸

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

Write the answer in scientific notation.
7.3 x 10⁵  +   3.7 x 10⁵  =

• 11.0 x 10⁵
• 1.1 x 10¹⁰
• 1.10 x 10¹¹
• 1.1 x 10 ⁶

Tags

CCSS.8.EE.A.4