enVision Math, 5th Grade Topic 3 Practice Test

Front

What is the best way to estimate the total number of hours worked if someone works 11 hours a day for 48 days?

Back

Multiply the daily hours by the number of days using compatible numbers: 10 hours/day x 50 days = 500 hours.

Front

How can you estimate the product of 4 X 26 X 7 using compatible numbers?

Back

Round 26 to 25 and estimate: 4 X 25 X 7 = 700.

Front

If a banana contains 105 calories, how many calories are in 14 bananas?

Back

Multiply the calories per banana by the number of bananas: 105 calories/banana x 14 bananas = 1,470 calories.

Front

How do you calculate the total points scored if each touchdown is worth 6 points and 24 touchdowns are scored?

Back

Multiply the number of touchdowns by the points per touchdown: 24 touchdowns x 6 points/touchdown = 144 points.

Front

What is the total number of copies printed by a newspaper that prints 9,000 copies each day for 40 days?

Back

Multiply the daily copies by the number of days: 9,000 copies/day x 40 days = 360,000 copies.

Front

What is a compatible number?

Back

A compatible number is a number that is easy to compute with mentally, often rounded to make calculations simpler.

Front

What does it mean to estimate in mathematics?

Back

Estimating means finding a number that is close enough to the right answer, often by rounding numbers.

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times.

Front

What is the purpose of using compatible numbers in calculations?

Back

Compatible numbers make it easier to perform mental math and get a quick estimate.

Front

How do you find the total calories consumed from multiple items?

Back

Multiply the calories per item by the number of items consumed.