Video: Solving Word Problems by Adding Two Decimal Numbers

A lion ate 11.4 kg of meat one day and 14.6 kg of meat the next day. How many kilograms of meat did it eat across the two days?

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Video Transcript

A lion ate 11.4 kilograms of meat one day and 14.6 kilograms of meat the next day. How many kilograms of meat did it eat across the two days?

To find the total amount of meat that the lion ate across the two days, we need to perform an addition: 11.4 plus 14.6. We can do this using a column addition method. The two numbers that we’re going to be summing are decimals, and we must make sure that we line up the decimal points.

The decimal point for our answer will be vertically below the two aligned decimal points for the numbers that we’re summing. Now, we begin to sum from right to left. Four plus six is equal to 10, so we put a zero in the tenths column and carry a one across into the units column.

Next, we have one plus four plus one. This is equal to six. In the final column, the tens column, we have one plus one which is equal to two. The answer to the addition is 26.0, which can just be written as 26. The total amount of meat the lion ate across the two days is 26 kilograms.

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