Rounding
What is 47 rounded to the nearest ten?
50
What is the value of the digit 3 in 3,456?
Thousand
Why do we round numbers?
To make them easier to use and understand while still keeping their value close to the original number
Show how you would round 348 to the nearest hundred.
300
How would you respond to someone who says rounding is not useful?
It makes calculations easier and is useful when you don't need to be extremely precise
Round 123 to the nearest hundred
100
What is the value of the digit 7 in 8,790?
Hundred
Explain how you would round 56 to the nearest ten.
The 6 in the ones column would round up making the number 60
Draw a number line to show rounding for 67.
60 65 67 70
What argument could you make for why rounding is important in real life?
Answers may vary
What is 6,789 rounded to the nearest thousand?
7,000
What is the place value of 5 in 6,758?
Tens
What is the benefit of rounding numbers?
Makes them easier to use or understand while also keeping the number close to its original value
Round 1,234 to the nearest thousand.
1,000
If someone rounds 549 to 600, what’s wrong with their reasoning?
4 in the tens place would round the hundreds down to 500.
Round 85 to the nearest ten.
90
What is the value of 9 in 9,123?
Thousand
Why is it important to know place value?
it forms the foundation of our number system, allowing us to accurately read, write, and compare large numbers, perform basic operations like addition and subtraction, and understand the value of each digit within a number based on its position
Use base ten blocks to round 456 to the nearest ten.
There should be 6 base ten blocks
Discuss a mistake in rounding 1,499 to 1,400.
The 9 in the tens place would round the number to 1,500.
What is 4,562 rounded to the nearest hundred?
4,600
What is the value of 2 in 1,342?
Ones
How can rounding help in estimating sums?
simplifying the numbers involved, making mental calculations easier and providing a reasonably accurate approximation of the actual sum, even if the exact answer is not required
How would you model rounding 2,998 to the nearest thousand?
3,000
What is the saying for remembering how to round?
Four or less let is rest and Five or more let it soar