Question

hanna has 34 pennies Mandy has 48 pennies Mandy says they have 72 pennies in all what should Mandy do to fix her mistake

Answer 1

Hanna has 34 pennies and Mandy 48.

If we add the pennies they have we get:

`34+48=82`

The mistake is that Mandy got a different result than the real addition of their pennies.

Her result was 72, but they have 82 pennies.

To fix her mistake she shoud have an 8 instead of a 7 in the tens place, so she should add 10 to his result.