Math Rounding/Estimation

A type of estimation with specific rules for determining the closest value

• rounding

• sum

• estimation

• profit

To find a value that is close to the right answer

• subtraction

• sum

• rounding

• estimation

Round 12.87 to nearest ones place.

• 12.9

• 13

• 12.90

• 13.0

What is 39 rounded to the nearest ten?

• 40

• 30

• 35

• 45

What is 104 rounded to the nearest ten?

• 90

• 95

• 110

• 100

The number 1000 has been rounded to the nearest 100. Find its lower and upper bounds

• 950  ≤ 1000  < 1050

• 950 ≤ 1000 < 1050.1

• 950 ≤ 1000 < 1051

I climbed 125 feet on Tuesday and 376 feet on Wednesday. Which number sentence shows the best way to estimate the amount of feet I climbed on both days?

• 100+300=400

• 100+400=500

• 200+300=500

• 200+400=500 

Joe spent $167 on camping gear. Rounded to the nearest hundred, about how much money did he spend?

• $100

• $160

• $170

• $200

There are 293 steps to the top of the Leaning Tower of Pisa in Italy.  To the nearest hundred, about how many steps are there?

• 200

• 300

• 290

• 250

Round 3,450 to the nearest hundred.

• 3,500

• 3,550

• 3,000

• 4,000