Question

Estimate first then name the sum or difference. Use your estimate to check your work. 1314 + 272

Answer 1

Answer:

Step-by-step explanation:

Number   =     Estimate

1314      ----->      1300    ( 314 lies between 300 & 400, 314<350 so- downward)

272     ----->        300    ( 272 lies between 200 & 300, 272 > 250 so-upward)

-------                  ---------

1586                   1600

-------                  --------

Answer 2

Answer:

1314→1300

272→300

Estimate value⇒ 1300+300=1600

Exact value⇒1314+272=1586

Step-by-step explanation: