Unit 3 Review: Rounding

Unit 3 Review: Rounding

Rounding

Rounding means making a number simpler but keeping its value close to what it was.

Multiple Choice

39 is closer to...

• 30

• 40

• 0

• 10

Multiple Choice

781 is closer to...

• 700

• 800

• 70

• 80

Multiple Choice

15,030 is closer to...

• 15,000

• 16,000

• 5,000

• 6,000

Steps for Rounding

• Underline the place value you are rounding to.

• Look next door (to the right).

• If the digit next door is 5 or more, round up.

• If the digit next door is 4 or less, round down.

Remember! Pay attention to the place value!

Sometimes when you round, you might need to regroup!

• 4,999 rounded to the nearest hundred would become 5,000!

Multiple Choice

Round to the given digit.

• 7,400

• 7,500

• 7,000

• 8,000

Multiple Choice

Round to the given digit.

• 284,560

• 284,570

• 284,000

• 285,000

We can estimate sums and differences!

• Round each number

• Then add or subtract!

Multiple Choice

Round each number to the nearest ten then solve.

263 - 115

• 110

• 120

• 130

• 140

Multiple Choice

Round each number to the nearest thousand then solve:

1,760 + 4,089

• 5,000

• 6,000

• 7,000

• 8,000