คำตอบ - Long addition
0.84
คำอธิบายทีละขั้นตอน
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| Carry | ||||
| 0 | . | 4 | 9 | |
| + | 0 | . | 3 | 5 |
| . |
2. Add up the digits in each column, from right to left
Add the numbers in the hundredths place value.
9+5=14
Write 4 in the hundredths place.
Because the sum is greater than 9, carry the 1 to the tenths place.
| Place value | ones | . | tenths | hundredths |
| Carry | 1 | |||
| 0 | . | 4 | 9 | |
| + | 0 | . | 3 | 5 |
| . | 4 |
Add the numbers in the tenths place value.
1+4+3=8
Write 8 in the tenths place.
| Place value | ones | . | tenths | hundredths |
| Carry | 1 | |||
| 0 | . | 4 | 9 | |
| + | 0 | . | 3 | 5 |
| . | 8 | 4 |
Add the numbers in the ones place value.
0+0=0
Write 0 in the ones place.
| Place value | ones | . | tenths | hundredths |
| Carry | 1 | |||
| 0 | . | 4 | 9 | |
| + | 0 | . | 3 | 5 |
| 0 | . | 8 | 4 |
The solution is: 0.84
ทำไมต้องเรียนสิ่งนี้
Learn more with Tiger
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.