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5/15 + 7/15=
12/15
Oops!
Okay!
2/5 + 1/5=
3/5
Oops!
Okay!
18/20 - 1/20=
17/20
Oops!
Okay!
10/12 - 4/12=
6/12
Oops!
Okay!
7/10 +2/10=
9/10
Oops!
Okay!
7/10 - 4/10=
3/10
Oops!
Okay!
12/15 - 9/15=
3/15
Oops!
Okay!
What is a keyword for subtraction?
any subtraction keyword
Oops!
Okay!
4/8 + 2/8=
6/8
Oops!
Okay!
3/17 + 8/17=
11/17
Oops!
Okay!
15/18 - 12/18=
3/18
Oops!
Okay!
16/20 +3/20=
19/20
Oops!
Okay!
What is a keyword for addition?
any addition keyword
Oops!
Okay!
8/20 + 9/20=
17/20
Oops!
Okay!
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