Skillful calculation of 102 × 33 △ 66

Skillful calculation of 102 × 33 △ 66

102×33÷66
=102×（33÷66）
=102×0.5
=51

The ingenious calculation of 66 times 573 plus 854 times 33
five hundred and fifty-five

It's easy, fast and accurate to use a calculator
China's education is like this. It's a very simple thing. It's very complicated. It's a century since we have to use primitive methods to solve problems

How much does 159 * 3535 / 5353-105 * 103 / 104 equal

159×353535/535353－105×103/104
=159×35×101010/（53×101010）-105×103/104
=159×35/53-105×103/104
=3×35-105×103/104
=105（1-103/104）
=105/104

159 times 5353 molecules 3535 minus 105 times 104 molecules 103 to get how many processes

159×353535/535353－105×103/104
=159×35/53－105×103/104
=105×﹙1－103/104﹚
=105×1/104
=105/104