Write the number with the same value as 28 tens
The correct answer and explanation is:
Correct Answer:
28 tens = 280
Explanation (300 words):
Understanding how place value works is key to solving this type of problem. Place value is the system we use to understand the value of each digit in a number based on its position. In the base-10 system, each place is ten times the value of the one to its right.
Let’s break it down:
- The word “tens” refers to the place value where each unit represents 10.
- So, 1 ten = 10,
2 tens = 20,
5 tens = 50, and so on.
If you are given 28 tens, you are being told there are 28 groups of 10.
To find the total value, multiply: 28×10=28028 \times 10 = 280
This tells us that 28 tens have the same value as 280.
Why is this useful?
Understanding place value helps in performing operations such as addition, subtraction, multiplication, and division. It also helps in estimating and understanding the size of numbers.
For example:
- If a child is told they have 28 tens, it’s another way of saying they have 280 units.
- In real-life, this can apply to counting money (e.g., 28 ten-dollar bills = $280) or understanding measurements (28 tens of meters = 280 meters).
Tip for Students:
Always remember the conversion:
- 1 ten = 10
- To find the value of any number of tens, multiply that number by 10.
So, next time you see something like “35 tens” or “7 tens,” just multiply by 10:
- 35 tens = 35 × 10 = 350
- 7 tens = 7 × 10 = 70
This is a fundamental math skill useful in both academics and daily life.