#include <LiquidCrystal_I2C.h>
#define LCD_ADDR 0x27
#define LCD_COLUMNS 16
#define LCD_ROWS 2
LiquidCrystal_I2C lcd(LCD_ADDR, LCD_COLUMNS, LCD_ROWS);

int num = 5;  

void setup() {
  lcd.begin(16, 2);
  lcd.init();
  lcd.backlight();
}

void loop() {
  for (int i = 1; i <= 10; i ++) {  
    lcd.clear();  
    
    lcd.setCursor(0, 0);
    lcd.print(num);
    lcd.print(" x ");
    lcd.print(i);
    lcd.print(" = ");
    lcd.print(num * i);
    delay(2000);  
  }
}