enVision Math, 5th Grade Topic 5 Practice Test

Front

What is compatible numbers in estimation?

Back

Compatible numbers are numbers that are easy to compute with mentally. They are often rounded to make calculations simpler.

Front

How do you estimate division using compatible numbers?

Back

To estimate division, round the numbers to the nearest compatible numbers that are easy to divide.

Front

What is the formula to find the number of boxes ordered if you have the total items and items per box?

Back

Total items ÷ Items per box = Number of boxes.

Front

How do you calculate the total number of windows in a building?

Back

Total windows = Number of floors × Windows per floor.

Front

What is the formula to find out how long it will take to wash all the windows?

Back

Total windows ÷ Windows washed per day = Total days to wash all windows.

Front

How do you find the number of items per group and the remainder when dividing?

Back

Divide the total items by the number of groups to find items per group, and use the remainder to find leftover items.

Front

What information is needed to calculate total consumption over time?

Back

You need the rate of consumption and the time period.

Front

What is the relationship between hours and daily consumption?

Back

Daily consumption = Rate of consumption × Number of hours.

Front

How do you set up a division problem to find out how many items each group gets?

Back

Set up the problem as Total items ÷ Number of groups.

Front

What does it mean to round numbers for estimation?

Back

Rounding numbers means adjusting them to the nearest ten, hundred, etc., to make calculations easier.