If the reading on a electric meter was 2345 kilowatt-hour and the next mouth was 3456 , how much electrical energy was used ?

3456 - 2345 ?

3456-2345=1111

To determine the electrical energy used between the two readings, you need to find the difference between the initial and final readings on the electric meter. In this case, the initial reading is 2345 kilowatt-hours and the final reading is 3456 kilowatt-hours.

To find the difference, subtract the initial reading from the final reading:

3456 kilowatt-hours - 2345 kilowatt-hours = 1111 kilowatt-hours

Therefore, the electrical energy used between the two readings is 1111 kilowatt-hours.