Vocab
Rounding and estimating are different from each other
False- they are similar. Rounding is a type of estimating
8,675+3,214
9,000+3,000= 12,000
Mount Saint Helens is a volcano that is 8,363 feet tall. Mount Fuji is a volcano that is 4,025 feet taller than Mount Saint Helens. About how tall is Mount Fuji? Round to the nearest thousand.
About 12,000 feet tall (8,000+4,000)
68,451-40,695
68,000-41,000=27,000
the result of ADDING two or more numbers
What is sum?
827,615-54,306
828,000-54,000=774,000
An educational video has 6,129 fewer views than a gaming video. The educational video has 483,056 views. About how many views does the gaming video have? Round to the nearest thousand.
About 489,000 views (6,000+483,000)
27,369+14,608
27,000+15,000=42,000
the result of SUBTRACTING these two numbers
What is the difference?
63,851+19,375
64,000+19,000=83,000
A storm causes 23,890 homes to be without power on the east side of a city and 18,370 homes to be without power on the west side. About how many homes altogether are without power? Round to the nearest thousand
About 42,000 homes are without power (24,000+18,000)
478,633+200,081
479,000+200,000=679,000
A number that is close to an exact number
What is an Estimate?
4,874-2,530
4,900-2,500=2,400
You walk 5,682 steps. Your teacher walks 4,219 steps more than you. About how many steps does your teacher walk? Round to the nearest hundred
About 9,900 steps (5,700+4,200)
888,056-423,985
888,000-424,000=464,000