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10 more and 10 less
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Solve 20 -10
10
Oops!
Okay!
What is 10 less than 27?
17
Oops!
Okay!
Mentally solve 22 - 10
12
Oops!
Okay!
Solve 60 - 50
10
Oops!
Okay!
Solve 90 - 70
20
Oops!
Okay!
Solve 70 - 30
40
Oops!
Okay!
Mentally solve 99 + 1
100
Oops!
Okay!
Solve 10 - 10
0
Oops!
Okay!
Solve 100 - 20
80
Oops!
Okay!
What is 10 less than 66?
56
Oops!
Okay!
Solve 20 + 30
50
Oops!
Okay!
Mentally solve 43 - 10
33
Oops!
Okay!
Solve 60 - 40
20
Oops!
Okay!
What is 10 more than 48?
58
Oops!
Okay!
What is 10 more than 87?
97
Oops!
Okay!
Mentally solve 77 + 10
87
Oops!
Okay!
Solve 90 - 30
60
Oops!
Okay!
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