Unit 3 Review

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler or easier to work with, usually to the nearest whole number, ten, hundred, etc.

Front

Round 525 to the nearest 100.

Back

500

Front

What is the formula to find the total number of students after some leave and some join?

Back

Total Students = Original Students - Students Moved Away + New Students

Front

The fourth grade had 363 students. Over winter break, 94 students moved away, but 26 new students moved in. How many students are now in fourth grade?

Back

295 students

Front

What is the difference between two numbers?

Back

The difference is the result of subtracting one number from another.

Front

Fourth graders read 637 books and fifth graders read 674 books. How many more books did the winners read than the losers?

Back

37 books

Front

Round 2861 to the nearest 100.

Back

2900

Front

What does it mean to find the 'more than' in a comparison?

Back

Finding 'more than' means calculating the difference between two quantities to see how much larger one is compared to the other.

Front

Which equation does NOT represent the problem: 'Fourth graders read 637 books and fifth graders read 674 books. How many more books did the winners read than the losers?'

Back

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.