Here are the solutions for the column addition problems on the sheet. I have aligned the decimal points and added the numbers step by step to ensure accuracy.
1) 62.7 + 32.8
62.7
+ 32.8
-------
95.5
2) 45.6 + 58.4
45.6
+ 58.4
-------
104.0
3) 150.9 + 117.3
150.9
+ 117.3
-------
268.2
4) 165.1 + 316.4
165.1
+ 316.4
-------
481.5
5) 27.56 + 13.27
27.56
+ 13.27
-------
40.83
6) 51.38 + 19.49
51.38
+ 19.49
-------
70.87
7) 17.77 + 35.82
17.77
+ 35.82
-------
53.59
8) 83.09 + 76.45
83.09
+ 76.45
-------
159.54
9) 487.5 + 56.27
*(Note: Add a zero to 487.5 to make it 487.50 so the columns match)*
487.50
+ 56.27
--------
543.77
10) 67.28 + 105.6
*(Note: Add a zero to 105.6 to make it 105.60)*
67.28
+ 105.60
--------
172.88
11) 15.82 + 6.9
*(Note: Add a zero to 6.9 to make it 6.90)*
15.82
+ 6.90
--------
22.72
12) 98.7 + 128.9
*(Note: Add zeros to make them 98.70 and 128.90)*
98.70
+ 128.90
--------
227.60 (or 227.6)
13) 54.67 + 127.54
54.67
+ 127.54
--------
182.21
14) 718.7 + 135.62
*(Note: Add a zero to 718.7 to make it 718.70)*
718.70
+ 135.62
--------
854.32
15) 58.79 + 6.85
58.79
+ 6.85
--------
65.64
16) 83.2 + 17.95
*(Note: Add a zero to 83.2 to make it 83.20)*
83.20
+ 17.95
--------
101.15
17) 13.28 + 16.35 + 2.55
13.28
16.35
+ 2.55
--------
32.18
18) 42.83 + 26.36 + 3.76
42.83
26.36
+ 3.76
--------
72.95
19) 87.81 + 23.84 + 62.38
87.81
23.84
+ 62.38
--------
174.03
20) 58.32 + 22.07 + 4.85
58.32
22.07
+ 4.85
--------
85.24
Final Answer:
1) 95.5
2) 104.0
3) 268.2
4) 481.5
5) 40.83
6) 70.87
7) 53.59
8) 159.54
9) 543.77
10) 172.88
11) 22.72
12) 227.6
13) 182.21
14) 854.32
15) 65.64
16) 101.15
17) 32.18
18) 72.95
19) 174.03
20) 85.24
Parent Tip: Review the logic above to help your child master the concept of addition of decimals worksheet pdf.
