Exploring Rational Number Operations in 7th Grade Math

The video tutorial covers rational number operations, focusing on converting percentages to decimals, decimals to percentages, and decimals to fractions. It includes practical applications through word problems and financial calculations, aiming to enhance problem-solving skills with an 80% accuracy target.

What is the main objective of the lesson on rational number operations?

• To understand the history of rational numbers

• To use different forms of rational numbers and strategies to solve real-life problems

• To memorize the multiplication table

• To learn about irrational numbers

Tags

CCSS.7.NS.A.2C

How do you convert 35% to a decimal?

• 3.5

• 0.35

• 35.0

• 0.035

What is the decimal equivalent of 85%?

• 0.85

• 8.5

• 85.0

• 0.085

How do you convert 0.85 to a fraction?

• 85/10

• 0.85/1

• 8.5/10

• 85/100

What is the fraction equivalent of 0.4?

• 4/10

• 2/5

• 4/5

• 1/4

If you hike for 3 hours at a rate of 3.5 miles per hour, how many miles have you hiked?

• 7 miles

• 12 miles

• 10.5 miles

• 3.5 miles

Tags

CCSS.6.NS.B.3

How long did it take to hike the same distance at a rate of 3.4 miles per hour?

• 3.5 hours

• 3.1 hours

• 2.5 hours

• 4 hours

Tags

CCSS.6.NS.B.3

If you saved 36 dollars per month on average for the past six months, and this month there was a change of -2.25%, how much did you save this month?

• 34.75 dollars

• 35.19 dollars

• 36.81 dollars

• 37.25 dollars

Tags

CCSS.6.RP.A.3C

What is the decimal equivalent of -2.25%?

• -0.225

• -0.0225

• -0.00225

• -2.25

How do you convert 2.25% to a decimal?

• 0.225

• 0.0225

• 2.25

• 0.00225