Question 2: the meaning of ink feather dust sunrise ink feather: black feather
Chen: It should be morning light, morning sunshine.
Question 3: a difficult problem, learn to make suggestions, thank you for not having advantages.
His honor is known all over the world.
Know everything
Very small
Question 4: What does the ink feather dust butterfly mean? Are you asking Mo Yu Liming? Ink feathers are black feathers, and black feathers must be dazzling in the twilight of the morning.
Question 5: Where did 8 out of 20 come from? 2/5
=(2×4)/(5×4)
=8/20
Question 6: How to divide one third by six and one third by six, as follows:
( 1/3)÷6 =( 1/3)x( 1/6)= 1/ 18
Calculation rule: if you divide by a number a, it is equivalent to multiplying the derivative of this number by1/a.
Law of division: How many digits is the divisor? Look at the first few digits of the divisor first. If the first few digits are not divided enough, look at one more digit. Except for the one to which it belongs, all the vendors will write on it. It is not enough for quotient one and quotient zero to occupy one position. The remainder is less than the divisor. If the quotient is decimal, the decimal point of the quotient should be aligned with that of the dividend. If the divisor is a decimal, it must be divided into integers and then calculated.
Question 7: It took a bear 2 seconds to fall into a hole 20 meters deep. This bear is () color. Solve it. yellow