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1 Grade
Adding and subtracting up to 10
Comparing numbers up to 10
Adding and subtracting up to 20
Addition and Subtraction within 10 or 20
2 Grade
Adding and Subtracting up to 100
Addition and Subtraction within 10 or 20
3 Grade
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Adding and Subtracting up to 100 - Problems with Solutions
Problems involving adding and subtracting numbers up to 100 for first and second grade.
Problem 1
Add: 10 + 67 =
Solution:
10 + 67 = 77
Problem 2
Add: 10 + 30 =
Solution:
10 + 30 = 40
Problem 3
Calculate: 99 - 85 =
Solution:
99 - 85 = 14
Problem 4
100 - 50 =
Solution:
100 - 50 = 50
Problem 5
Add: 23 + 7 =
Solution:
23 + 7 = 30
Problem 6
Subtract: 85 - 4 =
Solution:
85 - 4 = 81
Problem 7
Subtract: 76 - 30 =
Solution:
76 - 30 = 46
Problem 8
43 - 30 =
Solution:
43 - 30 = 13
Problem 9
72 - 11 =
Solution:
72 - 11 = 61
Problem 10
12 + 52 =
Solution:
12 + 52 = 64
Problem 11
28 + 12 =
Solution:
28 + 12 = 40
Problem 12 sent by Alexander
Write the numbers between 90 and 100 that the tens digits is 4 greater than the ones digit.
Solution:
Answer: 95
Problem 13 sent by Stanislav Kostoff
John had 100 chocolate egg toys. He gave 60 to Sissy. How many toys did John have?
Solution:
100 - 60 = 40
Problem 14
- 20 = 30
Solution:
30 + 20 = 50
so
50
- 20 = 30
Problem 15
Fill in the box with the correct number:
44 +
- 30 = 44
Solution:
44 +
30
- 30 = 44
Problem 16
Compare:
84 - 80
>
<
=
64
Solution:
84 - 80 = 4
so 4 < 64
Problem 17
Compare:
29 + 11
>
<
=
12 + 27
Solution:
29 + 11 = 40
12 + 27 = 39
so 29 + 11 > 12 + 27
Problem 18 sent by Dimitar
100-(24+36)-30 =
Solution:
100-(24+36)-30=
=100-60-30=
=40-30=
=10
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