High School

What is the value of the 7 in all the numbers?

A. 2784
B. 7000.07
C. 7582
D. 7000
E. 5487
F. 7519
G. 7000
H. 3752
I. 700

Complete the following:

Use each digit once to make the smallest 4-digit number.

Answer :

Sure, let's break down the problem step-by-step to find the value of 7 in each number and how to construct the smallest 4-digit number using given digits.

1. Value of the Digit '7' in Each Number:

- 2784: In this number, the '7' is in the thousands place. The value of '7' here is 7 1000 = 7000.

- 7582: In this number, the '7' is also in the thousands place. The value of '7' here is 7 1000 = 7000.

- 5487: In this number, the '7' is in the ones place. The value of '7' here is 7 1 = 7.

- 7519: In this number, the '7' is in the thousands place. The value of '7' here is 7 1000 = 7000.

- 3752: In this number, the '7' is in the hundreds place. The value of '7' here is 7 * 100 = 700.

2. Making the Smallest 4-Digit Number Using the Digits 2, 3, 5, and 1:

- To form the smallest 4-digit number, we arrange the digits in ascending order. So, we start with the smallest digit: 1, followed by 2, then 3, and finally 5.

- Arranging them in order: 1, 2, 3, 5.

- Combining them gives us the number: 1235.

So, the step-by-step solution results in these values and the smallest number:

- Values of '7': 7000, 7000, 7, 7000, 700
- Smallest 4-digit number: 1235

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