Addition and Subtraction in Tens, First Grade Math Test

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A free math test for first grade with questions that require addition and subtraction in tens.
Problem #1
Add: 10 + 40 =

Problem #2
Subtract: 60 - 20 =

Problem #3
Subtract: 90 - 60 =

Problem #4
Subtract: 70 - 60 =

Problem #5
Subtract: 60 - 40 =

Problem #6
Add: 20 + 70 =

Problem #7
Subtract: 50 - 10 =

Problem #8
Add: 20 + 60 =

Problem #9
Subtract: 60 - 30 =

Problem #10
Add: 50 + 20 =

Problem #11
Add: 40 + 50 =

Problem #12
Subtract: 50 - 20 =

Problem #13
Add: 60 + 30 =

Problem #14
Subtract: 80 - 20 =

Problem #15
There are 60 flamingos standing near a river. If 10 flamingos fly away, how many will there be near the river?




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