Mental Math ➕
11 + 39
50
MENTAL MATH
22 - 9 =
13
207 + 103
210
133 ➖ 24 =
109
MENTAL MATH
23 ➕29 =
52
MENTAL MATH
120➖ 20 =
100
56 ➕ 44 =
100
543 ➖ 126 =
417
MENTAL MATH
44 ➕57 =
101
32 - 13
19
178 ➕ 134 =
312
491 ➖ 137 =
354
Mental Math
26 + 92
118
MENTAL MATH
129 ➖ 11 =
118
589 ➕ 290 =
879
821 ➖ 685 =
136
MENTAL MATH
600➕ 400 =
1000
67 - 58
9
956 + 356
1312
382 ➖ 268 =
114