Powers of Ten

 $5\ \times\ 10^1\ \ =$  

• 50

• 51

• 50

• 500

Answer explanation

You are really just doing 5 x 10

Tags

CCSS.5.NBT.A.2

 $5\ \ \times\ \ 10^2\ \ =$  

• 500

• 10

• 50

• 52

Answer explanation

5 x (10 x 10) is really what you are doing here.  The exponent tells you to use the 10 as a factor 2 times.  10 x 10 is 100.  100 x 5  =  500!!

Tags

CCSS.5.NBT.A.2

 $5\ \times\ \ 10^3\ \ =$  

• 1,500

• 150

• 5,000

• 50

Answer explanation

Use the factor that is NOT the one with an exponent (the 5).  Look at the exponent.  It will tell you how many zeroes to have in your product (3).  5, 000

Tags

CCSS.5.NBT.A.2

 $5\ \ \times\ \ 10^4\ \ =$  

• 50,000

• 20

• 54

• 200

Tags

CCSS.5.NBT.A.2

 $3\ \ \times\ \ 10^4\ \ =$  

• 30

• 120

• 30,000

• 12

Tags

CCSS.5.NBT.A.2

Write 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 as an exponent.

• 100,000,000

• $10^8$

• 10 x 8

• 80

Answer explanation

The 10 is the factor that is repeating in the multiplication. The exponent is the number of times the 10 is used to multiply.

Tags

CCSS.6.EE.A.1

What part of the expanded form does NOT match the standard form?

• (1 x 100)

• (8 x 100,000)

• (5 x 1)

• (4 x 10)

Tags

CCSS.4.NBT.A.2

Which part of the expanded form does NOT match the standard form?

• (9 x 1,000)

• (5 x 1)

• (1 x 100)

• (8 x 10,000)

Tags

CCSS.4.NBT.A.2

Where's the mistake?

• They did (3 x 1,000) twice.

• (5 x 100)

• (2 x 10)

• (2 x 1)

Tags

CCSS.4.NBT.A.2

Where's the mistake?

• (7 x 1)

• (4 x 10) is not 40

• (9 x 1,000,000) should be (9 x 100,000)

• (8 x 10,000) + (6 x 1,000) does not equal 86,000

Tags

CCSS.4.NBT.A.2