Subtract!
Mental Math
20-10
What is 10
MENTAL MATH
37 + 68 =
What is 105
MENTAL MATH
8 x 9
72
They invented calculus.
Who are Newton and Leibniz
What is 52 ?
What is 25?
Mental Math
Fiona wants to buy a phone charger worth $42, but she only has a $50 bill How much change will she receive?
What is $8
345 + 134 =
What is 479?
MENTAL MATH
12 x 12 =
144
If you solve one, you solve them all.
What is an NP-complete problem.
What is 92
What is 81
Mental Math
60 - 30 =
What is 30
MENTAL MATH
98 + 499 =
What is 597
(8+7)*(9+84)*0
0
The answer to the “ultimate question of life, the universe, and everything
42
What is 252 ?
What is 625?