Rounding Multi-Digit Numbers

Skylar wants to know approximately how far away different objects are from the ground. We can help her find approximate distances by "Rounding Multi-Digit Numbers" to any place value.
Rounding numbers is a way of simplifying a number. When we round, our number will be an approximate answer, not an exact one. We can round to any place value of a multi-digit number by using the RULES OF ROUNDING. First, identify the place value being rounded and UNDERLINE the digit. Next, find the place value of the digit to the RIGHT and CIRCLE it. This number will tell us what we need to do. Now, look at these two place values. If the number you are rounding is followed by zero to four, the number being rounded STAYS THE SAME. If the number you are rounding is followed by five to nine, round the number UP to the NEXT NUMBER, because it is closer to the next whole number. Finally, all the remaining place values AFTER the rounded number are replaced with zeros. Sklyar sees a plane flying at thirty-eight thousand, five hundred and sixty feet. Let's help round to the nearest ten-thousands place to identify the approximate distance.

First, put our exact number in the place value chart and identify the place value we are rounding. We are rounding the ten-thousands place, so UNDERLINE the THREE. Next, find and circle the place value of the digit to the right, which is the eight in the thousands place. Because eight is between five and nine, this tells us to round UP. That means we change the ten thousands place to a four, and the following place values are replaced with zeros. Thirty-eight thousand, five hundred and sixty feet rounded to the nearest ten-thousand is FORTY-THOUSAND. "The plane was flying at approximately forty-thousand feet." Skylar looks into space and sees a satellite. The satellite is twenty-two thousand, two hundred and twenty-three miles away. We can round the distance of the satellite to the THOUSANDS place to get an approximate distance. We’ll put the exact number in the place value chart. First, identify the digit in the place value we are rounding and underline it. What do we underline? We underline the TWO in the THOUSANDS place. Now, circle the digit to the right, which is THIS two in the hundreds place. What does the two in the hundreds place tell us to do to the two in the thousands place? The two tells us the digit stays the same. The following place values will be replaced with zeros. Notice the digit in the TEN thousands place didn’t change. This is because it is BEFORE the place value we rounded. The satellite is approximately twenty-two thousand miles away. Skylar views the moon. It is two hundred and thirty-eight thousand, eight hundred and fifty-five miles away. We’ll round this distance to the HUNDREDS place to get a close approximation. First, put the number in the place value chart and underline the digit we are rounding. Which number do we underline? The eight in the HUNDREDS place. Now, circle the digit to the right. Which number do we circle? The five in the TENS place. As there is a five in the tens place, what does that tell us to do to the eight? Round UP to nine. What is the rounded number? Two hundred and thirty-eight thousand, NINE HUNDRED. The moon is approximately two hundred and thirty-eight thousand, nine hundred miles away. Skylar spots a UFO in the distance. While she tries to identify it, let's summarise. Remember, rounding numbers is a way of simplifying a number to make it easier to work with. We can round to any place value of a multi-digit number by using the RULES OF ROUNDING. First, identify the place value being rounded and UNDERLINE the digit. Next, find the place value of the digit to the right and CIRCLE it. If the number you are rounding is followed by five to nine, round the number up to the next number. If the number you are rounding is followed by zero to four, the number being rounded stays the same.

Is it a BIRD!? Is it a PLANE!? No, IT'S SUPER HENRY!