Question

3. Add the greatest 4-digit number to the least 5-digit number. Also, illustrate the
commutative property of addition with these two whole numbers:​

Answer 1

Answer:

19999

Step-by-step explanation:

greatest 4 digit number=9999

smallest 5 digit number=10000

sum=9999+10000=19999

commutative property is a+b=b+a

here a=9999, b=10000

a+b=9999+10000=19999

b+a=10000+9999=19999

so a+b=b+a, hence proved.