The sixth grade of primary school, the second volume of mathematics, Beijing Normal University Edition, knowledge and ability training, page 14, question 1 2 3.

Oh, this is a workbook. I wrote 20 pages. Just copy the following.

Is it a scale or an inverse scale?

Inverse ratio:

1.( 1) Answer; Is the associated quantity, and the daily delivery increases with the increase of time.

(2)300× 1=300 tons 150×2=300 tons 100×3=300 tons.

(3) A: It means the total amount.

(4) Answer: It is inversely proportional, because they are related quantities, and the daily delivery quantity × time =300 tons (certain).

Answer: It is inversely proportional, because it is a relative quantity, so the number of groups × the number of people in each group =60 (certain).

3.( 1) A: The shorter the length, the greater the width.

(2)9×7=63cm？ 8×8=64cm？ 7×9=63cm？ 6× 10=60cm？ 5× 1 1=55cm？

A: These products are unequal.

(3) A: Not inversely proportional, because their product is not necessarily.