Explanation:
Let's solve each subtraction problem step by step. When subtracting decimals, we need to line up the decimal points and add zeros if needed so that all numbers have the same number of decimal places. Then we subtract just like with whole numbers.
1. 90.0 - 0.026
Write 90.0 as 90.000 to match the 3 decimal places in 0.026.
90.000
- 0.026
_________
89.974
2. 0.100 - 0.019
Both have 3 decimal places.
0.100
- 0.019
_________
0.081
3. 0.800 - 0.059
Both have 3 decimal places.
0.800
- 0.059
_________
0.741
4. 80.0 - 8.7
Write 80.0 as 80.0 and 8.7 as 8.70 to match decimal places.
80.00
- 8.70
_________
71.30 or 71.3
5. 0.0500 - 0.0078
Write 0.0500 as 0.0500 and 0.0078 as 0.0078.
0.0500
- 0.0078
_________
0.0422
6. 80.0 - 0.0029
Write 80.0 as 80.0000 to match 4 decimal places.
80.0000
- 0.0029
_________
79.9971
7. 0.00300 - 0.00035
Write both with 5 decimal places: 0.00300 and 0.00035.
0.00300
- 0.00035
_________
0.00265
8. 0.0100 - 0.0065
Write 0.0100 as 0.0100 and 0.0065 as 0.0065.
0.0100
- 0.0065
_________
0.0035
Final Answer:
1. 89.974
2. 0.081
3. 0.741
4. 71.3
5. 0.0422
6. 79.9971
7. 0.00265
8. 0.0035
Parent Tip: Review the logic above to help your child master the concept of subtracting decimals worksheet year 6.
