842

÷ 4

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2 10.5

This involves mathematical addition, subtraction, multiplication and division, and the effective application of elementary arithmetic. We must be familiar with the law to achieve accurate and fast calculation results.

Multiplication is mainly used to check division. Division with remainder is also called division with remainder. The first thing to know is the concept of remainder. I am teacher Wang, focusing on primary school mathematics! The basic meaning of division is equal distribution. If some items are evenly distributed and there are surpluses, they need to be represented by a division formula with a remainder, where the remainder is the remainder (the remainder is a part of the total)!

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For example, 42 divided by 7. On a scale of 4 [from high to low]. When calculating the division vertically, start from most significant bit, such as: 42 from most significant bit 4; If it is not divisible, such as: 4 is not divisible by 7, then use the highest bit and the next bit to synthesize a number to be divisible until it can be divisible by the divisor; For example, if 4 is not divisible by 7 in 42, then 4 and 2 are combined into a number. If 42 is divided by 7, the quotient is 6.

Above content reference: Baidu Encyclopedia-Vertical