Mathematical Problem Solving

This video tutorial covers Unit 5 Lesson 14, focusing on using operations on decimals to solve various problems. It includes practical examples such as calculating the remaining ribbon after making wreaths, estimating the area of the Amazon rainforest, evaluating a student's performance in math class, and performing arithmetic operations like subtraction and division on decimal numbers.

How much ribbon was left after Diego cut pieces for presents?

• 4.0 meters

• 12 meters

• 8.4 meters

• 3.6 meters

How many wreaths could Diego make with the remaining ribbon?

• 16

• 14

• 10

• 12

What was the estimated area of the Amazon rainforest in 2014?

• 4.5 million km²

• 6.0 million km²

• 5.4 million km²

• 5.0 million km²

Did Jada have 90% of the total possible points before the final test?

• Yes, she had more than 90%

• No, she had less than 90%

• Yes, she had exactly 90%

• No, she had exactly 90%

If Jada scores 92 on her final test, will she get an A?

• Yes, she will have more than 90%

• No, she will have less than 90%

• Yes, she will have exactly 90%

• No, she will have exactly 89%

What is the result of 151 thousandths minus 28 thousandths?

• 0.151

• 0.100

• 0.123

• 0.028

What is the difference between 1006 thousandths and 315 ten thousandths?

• 0.0745

• 0.106

• 0.0315

• 0.100

What is 24.2 divided by 1.1?

• 26

• 22

• 20

• 24

What is the quotient of 13.25 divided by 0.4?

• 33.125

• 32.5

• 31.75

• 34.25

What is 170.28 divided by 0.08?

• 2135.5

• 2125.5

• 2130.5

• 2128.5