how many numbers from 2 to 7 are exactly divisible by 2 ?
"2 / 2 = 1 and 7 / 2 = 3 3 - 1 = 2 2 + 1 = 3 numbers . b )"
add(divide(subtract(multiply(floor(divide(7, 2)), 2), multiply(add(floor(divide(2, 2)), const_1), 2)), 2), const_1)