35÷( 1-8/ 15)

=35÷7/ 15

=75 kg

Thoughts on solving application problems;

(1) substitution method has some application problems. Give the relationship between two or more unknowns and find these unknowns. When thinking, we can replace another unknown with one unknown according to the conditions given in the question, thus simplifying the relationship between data volumes. So as to find a solution to the problem. (for example, multiple relationship application problems)

(2) Hypothetical method Some application problems need two or more unknowns. When thinking, you need to put forward some assumptions first, and then calculate according to the known quantity in the stem. According to the contradiction of data volume, make appropriate adjustments and finally find the correct answer. (such as engineering problems)

Extended data

Multi-digit division law:

(1) Divide from the high order of the dividend, and look at the first few digits of the dividend. If it is not enough, look at one more digit.

(2) Write the quotient on the divisor. If the divisor is not enough, put the quotient 0 on it.

(3) The remainder of each division must be less than the divisor. Place the digits of the dividend in the right of the remainder, and then continue the division.