2² + 2³ + 10² + 2⁴= 4 + 8 + 100 + 16 = 128
Only when you are counting in Base 4. When counting in Base 10, 2 + 2 would equal 4.
16, think of it as 2 times 8.
20 to the base 10 = 1Therefore 2 + 1 = 3
10 X 10 = 100 You can do this four ways: You can do it mentally in your head or you can add them all up on paper by lining up the numbers correctly with each other. You can use a calculator and that...