SJ 7.10 lesson

SJ 7.10 lesson

Number: Working with exponents

Question

Which numbers are easy to recognize?

Why?

Question

Which numbers are hard to recognize?

Why?

Question

Information

For many multi-digit numbers, it can be time can be time-consuming and messy to write and say the number name.

Some professions use exponents to write such numbers.

Information

The nature of our base-10 place-value system allows us to represent the hundreds, tens, and ones of each period by repeatedly multiplying 10.

Question

How many times do we need to multiply 10 to get one million?

Answer

6 times.

10⁶ means 10 multiplied together 6 times.

The 6 is an exponent.

Directions - math notebook

Write the equation for this picture.

Answer

There are two 1 cms, so one is the base and 2 is the exponent.

Directions - math notebook

Write the equation for this picture

Answer

There are 8 one cm squares.

Directions - math notebook

Solve 10³

Answer

10³= 10 x 10 x 10 = 1,000