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Study
Mental Math
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309 + 41
350
Oops!
Okay!
770 + 33
803
Oops!
Okay!
6 x 8000
48000
Oops!
Okay!
59 + 39
98
Oops!
Okay!
270 + 61
331
Oops!
Okay!
105 + 79
184
Oops!
Okay!
212 + 40
252
Oops!
Okay!
45 + 49
94
Oops!
Okay!
55 + 38
91
Oops!
Okay!
9 x 500
4500
Oops!
Okay!
69 + 27
96
Oops!
Okay!
58 + 33
91
Oops!
Okay!
300 x 60
18000
Oops!
Okay!
702 x 7
4914
Oops!
Okay!
541 x 3
1623
Oops!
Okay!
316 x 5
1580
Oops!
Okay!
203 x 7
1421
Oops!
Okay!
182 x 6
1092
Oops!
Okay!
134 x 4
536
Oops!
Okay!
30 x 800
24000
Oops!
Okay!
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