Explanation:
We are asked to write the numbers that come
before and
after each given number. That means:
- For a number like
7, the number before it is
6, and the number after it is
8.
- This is just counting: one less, then the number itself, then one more.
Let’s go row by row and fill in the blanks carefully.
1.
7 → Before: 6, After: 8
2.
16 → Before: 15, After: 17
3.
32 → Before: 31, After: 33
4.
21 → Before: 20, After: 22
5.
40 → Before: 39, After: 41
6.
1 → Before: 0, After: 2 *(Note: 0 is a valid number here — it comes before 1)*
7.
64 → Before: 63, After: 65
8.
87 → Before: 86, After: 88
9.
55 → Before: 54, After: 56
10.
79 → Before: 78, After: 80
Now the right column:
11.
96 → Before: 95, After: 97
12.
11 → Before: 10, After: 12
13.
3 → Before: 2, After: 4
14.
12 → Before: 11, After: 13
15.
30 → Before: 29, After: 31
16.
59 → Before: 58, After: 60
17.
44 → Before: 43, After: 45
18.
81 → Before: 80, After: 82
19.
66 → Before: 65, After: 67
20.
19 → Before: 18, After: 20
Let me double-check a few to be safe:
- 1 → before is 0
✔ (yes, whole numbers include 0)
- 3 → before 2, after 4
✔
- 96 → 95 and 97
✔
- 66 → 65 and 67
✔
All look correct.
Final Answer:
6, 8
15, 17
31, 33
20, 22
39, 41
0, 2
63, 65
86, 88
54, 56
78, 80
95, 97
10, 12
2, 4
11, 13
29, 31
58, 60
43, 45
80, 82
65, 67
18, 20
Parent Tip: Review the logic above to help your child master the concept of before and after math worksheet.
