Let’s solve each problem one by one. We’ll go row by row, left to right.
First row:
16 – 12 = 4
10 + 5 = 15
9 + 9 = 18
4 – 3 = 1
Second row:
12 – 3 = 9
23 – 12 = 11
4 + 5 = 9
22 – 11 = 11
Third row:
8 + 3 = 11
21 – 10 = 11
12 + 7 = 19
22 – 12 = 10
Fourth row:
5 + 4 = 9
7 – 6 = 1
4 + 7 = 11
5 + 7 = 12
Fifth row:
10 + 3 = 13
9 + 7 = 16
2 + 2 = 4
11 + 6 = 17
Sixth row:
6 – 4 = 2
5 – 4 = 1
9 – 3 = 6
10 + 6 = 16
Seventh row:
6 + 12 = 18
15 – 11 = 4
18 – 11 = 7
23 – 11 = 12
Eighth row:
11 – 4 = 7
20 – 8 = 12
5 + 9 = 14
9 – 6 = 3
Ninth row:
6 – 2 = 4
11 – 6 = 5
8 + 7 = 15
1 + 6 = 7
Tenth row:
4 + 8 = 12
5 + 6 = 11
3 + 10 = 13
13 – 11 = 2
Eleventh row:
7 + 1 = 8
9 + 11 = 20
8 – 2 = 6
6 + 5 = 11
Twelfth row:
21 – 11 = 10
17 – 6 = 11
20 – 12 = 8
9 + 8 = 17
All answers checked and correct.
Final Answer:
4, 15, 18, 1
9, 11, 9, 11
11, 11, 19, 10
9, 1, 11, 12
13, 16, 4, 17
2, 1, 6, 16
18, 4, 7, 12
7, 12, 14, 3
4, 5, 15, 7
12, 11, 13, 2
8, 20, 6, 11
10, 11, 8, 17
Parent Tip: Review the logic above to help your child master the concept of worksheet addition and subtraction mixed.