Question

using most convenient combination find the sum (9999,7777,1001)

Answer 1

Sum = 9999+7777+1001
= 18,777


This is a mental maths

9999
+7777
+1001
======
18,777


HOPE THIS HELPS YOU OUT: BEST OF LUCK

Answer 2

Answer:

we add the numbers

9999+7777+1001 = 1877

Step-by-step explanation:

for ex.

7,013+22+2345+655+678 = 10823