Question

round of to the nearest tens and find the actual and estimated sums of 126 311​

Answer 1

Answer:

Actual sum=126+311=437

Round off-

126 becomes 130

311 becomes 310

Estimated sum=130+310=440

Difference in actual and estimated sums=3

Answer 2

Answer:

437 ; 440

Step-by-step explanation:

actual sum : 126 + 311 = 437

now rounded off 126 ~ 130 & 311 ~ 310

estimated sum : 130 + 310 = 440