Question

Estimate. −49100+1021= ________

Answer 1

First we reorder the terms
1021−49100
Then we use the rule a - b = - (b - a)
-(49100 - 1021)
Then we use the algorithm method (that’s what I prefer)
After a simplification we have,
−(49100−1021) = -48079
Therefore , -49100 + 1021 = - 48079

Answer 2

-48079

Explanation:

-(49100-1021)

-48079