4.25 Calculating Change

4.25 Calculating Change

SWBAT: determine a percent increase or decrease

Determining Place Value

Label the other place values in the diagram.

Place Value

Match

Match the number with its place value:

572

• 5

• 7

• 2

hundreds

tens

ones

• hundreds

• tens

• ones

Match

Match the number with its place value:

3.24

• 3

• 2

• 4

ones

tenths

hundredths

• ones

• tenths

• hundredths

Match

Match the number with its place value:

51.793

• 1

• 7

• 9

• 3

• 5

ones

tenths

hundredths

thousandths

tens

• ones

• tenths

• hundredths

• thousandths

• tens

Rounding Decimals

Multiple Choice

You are told to round 0.572 to the nearest tenths place. Which number tells you how to round?

• 5

• 7

• 2

Multiple Choice

You are told to round 2.438 to the nearest hundredths place. Which number tells you which way to round?

• 8

• 3

• 4

• 2

Multiple Choice

Which number is 2.728 rounded to the nearest hundredths place?

• 2.7

• 2.72

• 2.73

• 3

Multiple Choice

Which number is 0.143 rounded to the nearest hundredths place?

• 0.1

• 0.14

• 0.15

Math Response

Round 1.287 to the nearest tenths place.

Type answer here

Correct Answer: 1.3

Deg^°

Rad

Math Response

Round 0.2459 to the nearest hundredths place

Type answer here

Correct Answer: 0.25

Deg^°

Rad

Multiple Choice

Calculate 2/7. Then, round to the nearest hundredths place.

• 0.28

• 0.29

• 0.3

Math Response

Round 8/6 to the nearest hundredths place

Type answer here

Correct Answer: 1.33

Deg^°

Rad

Match

Match each number with the decimal it will become once rounded to the nearest hundredth place.

• 1.468

• 0.234

• 12/11

• 15/13

1.47

0.23

1.09

1.15

• 1.47

• 0.23

• 1.09

• 1.15

Time to get back to Percentages

Keep this Mini-Lesson in mind as you continue your work with percentages.

Match

In 2015, the minimum wage in Massachusetts was $9 per hour. In 2023, it is $15 per hour. Match the key words.

• Original Amount

• New Amount

• Change Amount

$9

$15

$6

• $9

• $15

• $6

Multiple Choice

In 2015, the minimum wage in Massachusetts was $9 per hour. In 2023, it is $15 per hour.

To calculate the percent change, we need to calculate $$\frac{change}{original}$$ . What would that be in this scenario?

• 15/9

• 9/15

• 6/9

• 24/9

Multiple Choice

The answer to the previous question is 6/9. What is 6/9 as a decimal, rounded to the hundredths placee?

• 0.66

• 0.67

• 0.6

• 0.7

Multiple Choice

The answer to the previous question is 0.67. What is 0.67 as a percentage?

• 67%

• 6.7%

• 670%

Match

In 1991, the minimum wage was $4 per hour. In 2000, the minimum wage was $6 per hour. Match the key words.

• Original Amount

• New Amount

• Change Amount

$4

$6

$2

• $4

• $6

• $2