Hey there! Today, we’re going to learn about rounding numbers. Rounding helps us make numbers simpler and easier to work with. Let’s find out how to round numbers to the nearest 10 or 100!
When you want to round a number, you look at the digit to the right of the place you are rounding to. This will help you decide whether to round up or down.
Here’s a trick: underline the place you’re rounding to and draw an arrow to the digit that will help you decide.
Let’s round 137 to the nearest hundred. First, underline the hundreds place (1) and look at the tens place (3). The 3 tells us to round down, so 137 rounds down to 100. The numbers in the tens and ones places become zeros.
Now, let’s round 37 to the nearest ten. Look at the ones place (7). Since 7 is a big number, we round up, making 37 round up to 40. The number in the ones place becomes a zero.
Imagine your class wants to know how many fruits and vegetables you’ve eaten this week. Let’s use rounding to find out!
Your class ate 443 pieces of fruit. To round to the nearest hundred, underline the hundreds place (4) and look at the tens place (4). The 4 tells us to round down, so 443 rounds to 400.
Your class ate 29 vegetables. To round to the nearest ten, underline the tens place (2) and look at the ones place (9). The 9 tells us to round up, so 29 rounds to 30.
Let’s help the kids round the amount of protein and grains they eat.
The amount of protein is 154 grams. Look at the tens place (5). The 5 tells us to round up, so 154 rounds to 200 grams.
The amount of grains is 81 grams. Look at the ones place (1). The 1 tells us to round down, so 81 rounds to 80 grams.
Remember, if the digit you look at is 5 or higher, round up. If it’s 4 or lower, round down. Easy peasy!
Thanks for learning with us! Keep practicing, and you’ll be a rounding expert in no time!
Rounding Treasure Hunt: Go on a treasure hunt around your house or classroom! Find different items and write down their quantities. For example, count the number of pencils, books, or toys. Then, practice rounding these numbers to the nearest ten or hundred. Share your findings with a friend or family member and see if they can guess the original number before rounding!
Rounding Relay Race: Gather a group of friends or classmates and form two teams. Each team will have a set of numbers written on cards. One by one, team members will pick a card, round the number to the nearest ten or hundred, and run to a designated spot to place the card in the correct “rounded” basket. The first team to correctly round all their numbers wins!
Everyday Rounding Questions: During your next trip to the grocery store or while cooking at home, look at the prices or quantities of items. Ask yourself questions like, “If this costs $47, what would it be rounded to the nearest ten?” or “We have 123 grams of flour, what is it rounded to the nearest hundred?” Discuss your answers with a family member and see if they agree with your rounding!
Sure! Here’s a sanitized version of the transcript, with unnecessary details and filler words removed for clarity:
—
Welcome to Kids Academy! When rounding a number to the nearest 10 or 100, look at the place to the right to decide whether to round up or down. I like to underline the place I’m rounding to and draw an arrow to the place that will help me decide.
For example, when rounding 137 to the nearest hundred, we look at the tens place. The 3 tells us to round down, so 137 rounds down to 100. The numbers in the ones and tens places become zeros.
Now, for 37, when rounding to the nearest ten, we look at the ones place. Since the number is a 7, we round up, making 37 round up to 40. The number in the ones place becomes a zero.
Let’s look at a real-life situation that requires rounding. The kids want to know how many fruits and vegetables their class has eaten this week.
First, we’ll round the fruits eaten this week. According to the data, 443 pieces of fruit were eaten. Rounding to the nearest hundred, we underline the hundreds place and look at the tens place. The 4 in the tens place tells us to round down, so 443 rounds to 400.
Next, we round the vegetables eaten this week. According to the data, 29 vegetables were eaten. Rounding to the nearest ten, we underline the tens place and look at the ones place. The 9 in the ones place tells us to round up, so 29 rounds to 30.
Now, here’s a challenge: help the kids round the amount of protein one kid eats a day to the nearest hundred and the amount of grains to the nearest ten.
The amount of protein is 154 grams. The 5 in the tens place tells us to round up, so 154 rounds to 200 grams. The amount of grains is 81 grams. The 1 in the ones place tells us to round down, so 81 rounds to 80 grams.
Remember to look at the place to the right of the place you want to round to. If you see a 5 or higher, round up; if you see a 4 or lower, round down.
Thanks for watching! Subscribe to our channel to stay updated on new videos. Find links to our apps in the comments below.
—
This version maintains the educational content while removing extraneous details.
