Adding and Subtracting by Rounding

Subtract the following numbers by rounding to the nearest 100

756 - 549 =

• 400

• 300

• 200

• 100

what is the estimated difference for

786 - 245 ( Round to the nearest tens )

• 540

• 600

• 500

• 541

Round 862,840 to the nearest ten thousands.

• 860,000

• 862,000

• 870,000

• 900,000

Round 73,590 to the nearest thousands.

• 73,600

• 70,000

• 74,000

• 71,000

Which number is 247,039 rounded to the nearest thousand?

• 200,000

• 250,000

• 247,000

• 7,000

Estimate by rounding to the greatest place value and then adding.

• 30,000

• 30,984

• 31,000

• 31,883

Estimate by rounding to the greatest place value and then subtracting.

• 20,000

• 3,652

• 4,000

• 2,000

Round the number to the underlined place value.

• 389,000

• 400,000

• 389,400

• 390,000

Round to the underlined place value.

• 499,000

• 500,000

• 498,000

• 599,500