Mastering Multiplication and Division of Rational Numbers

What grade level is the concept of multiplication and division being taught?

• Fifth grade

• Sixth grade

• Eighth grade

• Seventh grade

What is the baby's weight at birth?

• 7.5 pounds

• 8 pounds

• 6.75 pounds

• 7.25 pounds

How many times more does the baby weigh at the end of eight months?

• Three and a half times

• Three times

• Two and a half times

• Two times

What is one-half as a decimal?

• 0.75

• 0.25

• 0.5

• 0.2

What is the first step in simplifying the multiplication problem?

• Divide the numbers

• Convert the fraction to a decimal

• Multiply directly

• Convert the decimal to a fraction

What is 2.5 as a mixed number?

• 2 and 2/5

• 2 and 3/4

• 2 and 1/4

• 2 and 1/2

How many digits are behind the decimal in the final answer?

• Four

• Five

• Two

• Three

What is the baby's weight at the end of eight months?

• 17.625 pounds

• 18.125 pounds

• 18.625 pounds

• 19.125 pounds

What is the equivalent of 725 over 100 in decimal form?

• 725.0

• 72.5

• 0.725

• 7.25

Which method is easier for solving the problem, according to the video?

• The method was not specified

• Both are equally easy

• Using decimals

• Using fractions