TT Pre Algebra Lessons 91-94

calculate: $$2^6$$

$$5\cdot5\cdot5\cdot5\cdot5\cdot5\cdot5$$

True or False:

Raising a number to a power is a short way to write the same number multiplied repeatedly.

True or False:

In a power (like $$5^3$$ ) the little number in the upper right is called the exponent and big number below is called the base.

Rewrite in scientific notation:

83,000,000,000,000

True or False:

Scientific notation i a short way to write very large numbers that is used by scientists.

True or False:

Scientific notation never includes powers.

Solve:

$$\left(2\cdot3\right)^3$$

Solve:

$$\left(4+3\right)^2$$

True or False:

If they're going to be mixed with other operations, powers need to be included in the order of operations

True or False:

In the order of operations, powers (exponents) are done first unless parentheses indicate otherwise.

Simplify:

$$3x^2+4x^2$$

calculate:

$$15-3^2$$

True or False:

To add x's raised to a power, you add their coefficients.

True or False:

Like terms are x's with the same exponents.