Question

Estimate. Find the sum 524+256

Answer 1

Put the 2 numbers in to a colom then start to add the two numbers right to left so 6+4 makes 10 then 5+2+ the 1 you carryed over to make 8 then add 5 and 2 to get 7 then add 10,8,7 to get 780

Answer 2

Explanation:

▶ Sum of -524 and 678

= -524 + 678

= 154

▶ Now , difference of 154 and - 19

= 154 - ( -19)

= 154 + 19

= 173