MP3 Week 1(F) Check for Understanding

• 2⁷

• 2¹²

• 2¹

• 2^-2

• 2⁵

Answer explanation

When you multiply numbers with the same base, you add the exponents

Tags

CCSS.8.EE.A.1

Answer explanation

Same sign, add and keep

different signs, subtract!

Keep the sign of the 'bigger' number

Then you'll be exact!

Tags

CCSS.8.EE.A.1

Tags

CCSS.8.EE.A.1

Answer explanation

Base stays the same! If you have five threes, and multiply it by three threes, then you have eight threes.

Tags

CCSS.8.EE.A.1

Answer explanation

When dividing and the bases are the same, subtract your exponents

Tags

CCSS.8.EE.A.1

• 6

Answer explanation

If there is no exponent on a number, there really is a 1 there. When we subtract the exponents: 6-1=5

Tags

CCSS.8.EE.A.1

Answer explanation

Subtract the exponents

-2 - (-3) --> -2+3=1

Tags

CCSS.8.EE.A.1

Answer explanation

The blank is your initial value - in this case it is the original cost of the car $21,550 (no $ in your answer)

• The time since you got your license

• The time of year that you bought your car

• The number of years since you bought your car

• The number of people who owned the car before you