Question

Which equation should be used to estimate the answer to this story problem? The Bell family has three dogs. Soba weighs 48 pounds. Boomer weighs 107 pounds. Pepper weighs 88 pounds. What is the total weight of the three dogs? A. 100 + 150 + 100 = t B. 100 + 100 + 100 = t C. 50 + 100 + 100 = t D. 50 + 100 + 150 = t

Answer 1

88+107+48=243 which is close to 250. 88 is close to 100. 107 is close to 100. 48 is close to 50. 100+100+50 is close to the real answer, so C is correct.

Answer 2

If you had to estimate/round up the dog's weight, the best answer would be C. 50+100+100=t. t would then equal 250, when the true answer is 243 lbs.