5.2A Expanded Notation to Standard (Day 1)

5.2A Expanded Notation to Standard

By Mr. Burton

DO NOW​

Multiple Choice

The weight of a newborn baby is 8.34 pounds.  Which of the following is equivalent to the weight of the baby?

• 0.8 + 0.03 + 0.004
• 8 + 0.03 + 0.004
• 800 + 30 + 4
• 8 + 0.3 + 0.04

Multiple Choice

One of 100 equal parts; the second place to the right of the decimal point

• tenth

• thousandth

• hundreds

• hundredth

Preview Challenge​

Latasha and Marci each created a YouTube video less than 6 minutes long. How is the length of each video written in standard form? 

• Latasha’s Video

(5 x 1) + (3 x 0.1) + (7 x 0.01) + (2 x 0.001)

• Marci’s Video 

(5 x 1) + (7 x 0.1) + (2 x 0.01)​

What pattern occurs when representing decimals in expanded notation?​

Open Ended

What pattern occurs when representing decimals in expanded notation?

Academic Vocabulary​

• billion

• expanded notation

• hundreds/hundredths

• million

• ones

• place value

• tens/tenths 

• thousands/thousandths​

I Do​

Fill in the Blanks

Austin used these clues to describe his mystery number.

One digit has a value of 8 x 10

One digit has a value of 9 x 0.1

One digit has a value of 2 x 0.01

What is Austin’s mystery number written in standard form?

We Do​

Fill in the Blanks

The height, in centimeters, of the world’s smallest dog ls shown in expanded notation.

(9 x 1) + (6 x 0.1) + (5 x 0.01)

How many centimeters tall is the world’s smallest dog expressed in standard form?