Adding Decimals
Download as PPTX, PDF5 likes11,129 views
The column method is used to add decimal numbers. First, the numbers are lined up with the decimal points aligned. Then each column is added separately, carrying numbers to the next column as needed. For the example of adding 3.77 and 4.28, the hundreds column is added first (7 + 8 = 15, writing the 5 and carrying the 1). Then the tens column is added (7 + 2 + 1 = 10, writing 0 and carrying 1). Finally, the ones column is added (3 + 4 + 1 = 8). The total is 8.05 + 1 = 8.08.
More Related Content
Similar to Adding Decimals (20)
Adding Decimals
- 1. Adding Decimal Numbers Using The Column Method For more maths help & free games related to this, visit: www.makemymathsbetter.com
- 2. For example: 3.77 + 4.28
- 3. For example: 3.77 + 4.28 Firstly, line the numbers up correctly U 3 + 4 t 7 2 h 7 8
- 4. For example: 3.77 + 4.28 Firstly, line the numbers up correctly and add a decimal point in the answer bar: U 3 + 4 t 7 2 h 7 8
- 5. U 3 + 4 t 7 2 h 7 8 Then add up the hundredths:
- 6. U 3 + 4 t 7 2 h 7 8 Then add up the hundredths: 7 + 8 = 15
- 7. U 3 + 4 t 7 2 h 7 8 5 Then add up the hundredths: 7 + 8 = 15 The 5 is written in the hundredths column
- 8. U 3 + 4 t 7 2 h 7 8 5 1 Then add up the hundredths: 7 + 8 = 15 The 5 is written in the hundredths column and the 1 is carried into the tenths column and written below the answer bar.
- 9. U 3 + 4 t 7 2 Now add up the tenths: h 7 8 5 1
- 10. U 3 + 4 t 7 2 Now add up the tenths: 7 + 2 + 1 = 10 tenths h 7 8 5 1
- 11. U 3 + 4 Now add up the tenths: 7 + 2 + 1 = 10 tenths The 0 is written in the tenths column t 7 2 h 7 8 0 5 1
- 12. U 3 + 4 Now add up the tenths: 7 + 2 + 1 = 10 tenths The 0 is written in the tenths column and the 1 is carried into the UNITS column and written below the answer bar. h 7 8 0 1 t 7 2 5 1
- 13. U 3 + 4 1 h 7 8 0 Finally, add up the units: t 7 2 5 1
- 14. U 3 + 4 1 h 7 8 0 Finally, add up the units: 3+4+1=8 t 7 2 5 1
- 15. U 3 + 4 Finally, add up the units: 3+4+1=8 The 8 is written in the Units column t 7 2 h 7 8 8 0 5 1 1
- 17. That’s it for now...... For more help with your maths, try my book: mastering multiplication tables on amazon.com