Question

Write a Java program to help first graders to practice math subtraction.

Your program must:randomly generate two single-digit integers, number1 and number2.
number1 must be greater than or equals to number2 (i.e., number1 ≥ number2)
If number1 < number2, swap number1 with number2
ask the student the question: "What is number1 - number2?"
verify the student’s answer, and display whether the answer is correct:
"You are correct!", if the answer is correct.
"Your answer is incorrect. number1 - number2 is difference", if the answer is incorrect.
Where difference is the result of number1 minus number2
ask the student the question: "Do you want to play again?"
If "y" or "Y", the program loops back to the begin.
If "n" or "N", the program exits

Answer 1

A Java program is written for first graders to practice math subtraction using random number generation, comparisons, and loops; it reinforces concepts like swapping numbers to ensure proper subtraction.

Step-by-step explanation:

To help first graders practice math subtraction, we can write a simple Java program that fulfills the following requirements:

1. Generates two single-digit integers, ensuring the first is greater than or equal to the second.
2. Checks if the student's answer is correct and provides feedback accordingly.
3. Allows the student to play again based on their input.

The core logic will involve using random number generation, conditional statements for comparisons, and a loop to enable multiple attempts. The program will also demonstrate key addition and subtraction principles such as ensuring the larger number is first in a subtraction equation and swapping numbers if necessary.

To write a Java program to help first graders practice math subtraction, you can follow these steps:

Randomly generate two single-digit integers, number1 and number2. Make sure that number1 is greater than or equal to number2.

If number1 is less than number2, swap their values.

Ask the student the question: "What is number1 - number2?"

Verify the student's answer using an if statement. If the answer is correct, display the message "You are correct!". If the answer is incorrect, subtract number2 from number1 and display the message "Your answer is incorrect. number1 - number2 is difference", where difference is the result.

Ask the student if they want to play again. If the answer is "y" or "Y", loop back to the beginning. If the answer is "n" or "N", exit the program.