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 =
Problem 2
Add: 10 + 30 =
Problem 3
Calculate: 99 - 85 =
Problem 4
100 - 50 =
Problem 5
Add: 23 + 7 =
Problem 6
Subtract: 85 - 4 =
Problem 7
Subtract: 76 - 30 =
Problem 8
43 - 30 =
Problem 9
72 - 11 =
Problem 10
12 + 52 =

Problem 11
28 + 12 =
Problem 12 sent by Alexander
Write the numbers between 90 and 100 that the tens digits is 4 greater than the ones digit.
Problem 13 sent by Stanislav Kostoff
John had 100 chocolate egg toys. He gave 60 to Sissy. How many toys did John have?
Problem 14
- 20 = 30
Problem 15
Fill in the box with the correct number:
44 + - 30 = 44
Problem 16
Compare:
84 - 80 64
Problem 17
Compare:
29 + 11 12 + 27
Problem 18 sent by Dimitar
100-(24+36)-30 =
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