Q2 BM Review

Front

Is 5783 divisible by 3?

Back

No, a number is divisible by 3 if the sum of its digits is divisible by 3. The sum of the digits of 5783 is 5 + 7 + 8 + 3 = 23, which is not divisible by 3.

Front

Annie needs \(\frac{3}{4}\) of a cup of chocolate chips to make a recipe. She only wants to make half of the recipe. How many cups of chocolate chips will she need?

Back

\(\frac{3}{8}\) of a cup. To find half of \(\frac{3}{4}\), multiply by \(\frac{1}{2}\): \(\frac{3}{4} \times \frac{1}{2} = \frac{3}{8}\).

Front

Juan has 4 \(\frac{1}{2}\) gallons of blue paint. Each wall in his house will need \(\frac{3}{4}\) of a gallon of paint. How many walls can Juan paint blue with the paint he has?

Back

6 walls. First, convert 4 \(\frac{1}{2}\) to an improper fraction: \(\frac{9}{2}\). Then divide by \(\frac{3}{4}\): \(\frac{9}{2} \div \frac{3}{4} = \frac{9}{2} \times \frac{4}{3} = 6\).

Front

Ellie spends $350 on 70 circus tickets. What was the cost of one ticket?

Back

$5. To find the cost of one ticket, divide the total cost by the number of tickets: \(\frac{350}{70} = 5\).

Front

What is \(8.25 - 7.8\)?

Back

0.45. Subtract 7.8 from 8.25 to get 0.45.

Front

What is the definition of a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

What is the definition of a fraction?

Back

A fraction represents a part of a whole and is expressed as \(\frac{a}{b}\), where 'a' is the numerator and 'b' is the denominator.

Front

What is the process to convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the definition of a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.