Video Explanation
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | ||
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . |
2. Add up the digits in each column, from right to left
Add the numbers in the millionths place value.
5+0=5
Write 5 in the millionths place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . | 5 |
Add the numbers in the hundred thousandths place value.
4+0=4
Write 4 in the hundred thousandths place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . | 4 | 5 |
Add the numbers in the ten thousandths place value.
0+5=5
Write 5 in the ten thousandths place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . | 5 | 4 | 5 |
Add the numbers in the thousandths place value.
0+2=2
Write 2 in the thousandths place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . | 2 | 5 | 4 | 5 |
Add the numbers in the hundredths place value.
0+0=0
Write 0 in the hundredths place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . | 0 | 2 | 5 | 4 | 5 |
Add the numbers in the tenths place value.
0+0=0
Write 0 in the tenths place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| . | 0 | 0 | 2 | 5 | 4 | 5 |
Add the numbers in the ones place value.
0+0=0
Write 0 in the ones place.
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| TABLE_NAME_CARRY | ||||||||
| 0 | . | 0 | 0 | 0 | 0 | 4 | 5 | |
| + | 0 | . | 0 | 0 | 2 | 5 | 0 | 0 |
| 0 | . | 0 | 0 | 2 | 5 | 4 | 5 |
The solution is: 0.002545
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Please leave us feedback.Why learn this
Addition is the most basic math action and is used daily by almost everybody. Playing games, paying at the supermarket, and cooking are just a few examples of when we add.
Long addition is a clear and simple method to add numbers. Especially big numbers.
Although today calculators do this job for us, understanding the concept of addition is a key ability for understanding math.