Songs of four arithmetic formulas of addition, subtraction, multiplication and division
A nursery rhyme that counts by dividing several numbers.
Look at the highest dividend first. A high dividend is not enough.
Quotient is written anywhere except dividend.
If the quotient is less than 1, write 0 to calculate the first and last digits of the quotient.
The remainder should be less than the divisor, so that the operation is correct.
Decimal addition and subtraction nursery rhymes
Calculate decimal addition and subtraction, align keys with decimal points,
You can add and subtract by filling the last number with 0.
Decimal size comparison nursery rhymes
Decimal size is relatively easy. Put them all on first.
Decimals and numbers should match, and then compare.
Compare the highest bit first, and the ratio of the highest bit to the low bit is the same.
Finally, it is divided into high and low, which is higher and which is bigger.
Keep it in mind.
Division is the division of decimals
Division is a decimal, so remember to shift.
Move the decimal point to make it an integer,
Move the divisor a few places, and so will the dividend.