Question

Use front-end estimation to add 495 + 650 + 875. Indicate the three digits that you will add first.
Student Answer:
3

4

5

6

7

8

Answer 1

What? No. Front-end estimation is the calculation of the front digits. In this case, the numbers 4 + 6 + 8. That equals 18.

The student's answer is wrong.

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